From cbbb052cb44d391fe3200dae1230acca0a9356b9 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 15:27:44 +0900
Subject: [PATCH 01/44] =?UTF-8?q?docs(README):=20=EA=B8=B0=EB=8A=A5?=
 =?UTF-8?q?=EB=AA=A9=EB=A1=9D=20=EC=B4=88=EC=95=88=20=EC=9E=91=EC=84=B1?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 docs/README.md

diff --git a/docs/README.md b/docs/README.md
new file mode 100644
index 000000000..e28752bf6
--- /dev/null
+++ b/docs/README.md
@@ -0,0 +1,24 @@
+# 미션 제목
+
+## 기능
+- [ ] 입력 받은 금액에 따라 동전을 무작위로 생성한다.
+- [ ] 구입한 상품의 수량을 1 감소시킨다.
+- [ ] 상품 가격만큼 투입 금액을 감소시킨다.
+- [ ] 남은 투입 금액이 상품의 최저 가격보다 적거나, 모든 상품이 소진된 경우 바로 잔돈을 돌려준다.
+  - 잔돈을 반환할 수 없는 경우 잔돈으로 반환할 수 있는 금액만 반환한다.
+  - 반환되지 않은 금액은 자판기에 남는다.
+
+## 입력
+- [ ] 자판기가 보유한 금액을 입력 받는다.
+  - 상품명, 가격, 수량은 쉼표로, 개별 상품은 대괄호([])로 묶어 세미콜론(;)으로 구분한다.
+- [ ] 자판기에 추가할 상품명, 가격, 수량을 입력 받는다.
+- [ ] 투입 금액을 입력 받는다.
+- [ ] 구매할 상품의 상품명을 입력 받는다.
+
+## 출력
+- [ ] 자판기가 보유한 동전 내역을 출력한다.
+- [ ] 남은 투입 금액을 출력한다.
+- [ ] 잔돈을 출력한다.
+
+## 검증 내용
+- [ ] 상품 가격은 100원부터 시작하며, 10원으로 나누어떨어져야 한다.
\ No newline at end of file

From 108910d82464e2418aa865d3f65673fa7f9361f0 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 15:28:42 +0900
Subject: [PATCH 02/44] =?UTF-8?q?feat(RandomNumberGenerator):=20=EB=9E=9C?=
 =?UTF-8?q?=EB=8D=A4=20=EC=88=AB=EC=9E=90=20=EC=83=9D=EC=84=B1=20=EA=B8=B0?=
 =?UTF-8?q?=EB=8A=A5=20=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                                    |  2 +-
 .../vendingmachine/RandomNumberGenerator.java     | 15 +++++++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/vendingmachine/RandomNumberGenerator.java

diff --git a/docs/README.md b/docs/README.md
index e28752bf6..c6d597047 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -1,7 +1,7 @@
 # 미션 제목
 
 ## 기능
-- [ ] 입력 받은 금액에 따라 동전을 무작위로 생성한다.
+- [x] 입력 받은 금액에 따라 동전을 무작위로 생성한다.
 - [ ] 구입한 상품의 수량을 1 감소시킨다.
 - [ ] 상품 가격만큼 투입 금액을 감소시킨다.
 - [ ] 남은 투입 금액이 상품의 최저 가격보다 적거나, 모든 상품이 소진된 경우 바로 잔돈을 돌려준다.
diff --git a/src/main/java/vendingmachine/RandomNumberGenerator.java b/src/main/java/vendingmachine/RandomNumberGenerator.java
new file mode 100644
index 000000000..47bd1fd9f
--- /dev/null
+++ b/src/main/java/vendingmachine/RandomNumberGenerator.java
@@ -0,0 +1,15 @@
+package vendingmachine;
+
+import java.util.List;
+
+import camp.nextstep.edu.missionutils.Randoms;
+
+public class RandomNumberGenerator {
+
+    private RandomNumberGenerator() {
+    }
+
+    public int generate(List<Integer> numbers) {
+        return Randoms.pickNumberInList(numbers);
+    }
+}

From bc0287e4940bebc3e33feefe35e5265667181cf9 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 15:31:46 +0900
Subject: [PATCH 03/44] =?UTF-8?q?feat(VendingMachine):=20=EC=83=81?=
 =?UTF-8?q?=ED=92=88=20=EC=B6=94=EA=B0=80=20=EA=B8=B0=EB=8A=A5=20=EA=B5=AC?=
 =?UTF-8?q?=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                                   |  1 +
 src/main/java/vendingmachine/VendingMachine.java | 16 ++++++++++++++++
 2 files changed, 17 insertions(+)
 create mode 100644 src/main/java/vendingmachine/VendingMachine.java

diff --git a/docs/README.md b/docs/README.md
index c6d597047..d5d253e29 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -2,6 +2,7 @@
 
 ## 기능
 - [x] 입력 받은 금액에 따라 동전을 무작위로 생성한다.
+- [x] 입력 받은 상품 하나를 추가한다.
 - [ ] 구입한 상품의 수량을 1 감소시킨다.
 - [ ] 상품 가격만큼 투입 금액을 감소시킨다.
 - [ ] 남은 투입 금액이 상품의 최저 가격보다 적거나, 모든 상품이 소진된 경우 바로 잔돈을 돌려준다.
diff --git a/src/main/java/vendingmachine/VendingMachine.java b/src/main/java/vendingmachine/VendingMachine.java
new file mode 100644
index 000000000..ec5a950a6
--- /dev/null
+++ b/src/main/java/vendingmachine/VendingMachine.java
@@ -0,0 +1,16 @@
+package vendingmachine;
+
+import java.util.List;
+
+public class VendingMachine {
+
+    private List<Product> products;
+
+    public VendingMachine(List<Product> products) {
+        this.products = products;
+    }
+
+    public void addProduct(Product product) {
+        products.add(product);
+    }
+}

From fcd832cd0ede2afcf868515e83f97534e852a007 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 15:34:08 +0900
Subject: [PATCH 04/44] =?UTF-8?q?feat(Product):=20=EC=83=81=ED=92=88=20?=
 =?UTF-8?q?=EC=88=98=EB=9F=89=201=EA=B0=9C=20=EA=B0=90=EC=86=8C=20?=
 =?UTF-8?q?=EA=B8=B0=EB=8A=A5=20=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                            |  2 +-
 src/main/java/vendingmachine/Product.java | 20 ++++++++++++++++++++
 2 files changed, 21 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/vendingmachine/Product.java

diff --git a/docs/README.md b/docs/README.md
index d5d253e29..2b394d165 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -3,7 +3,7 @@
 ## 기능
 - [x] 입력 받은 금액에 따라 동전을 무작위로 생성한다.
 - [x] 입력 받은 상품 하나를 추가한다.
-- [ ] 구입한 상품의 수량을 1 감소시킨다.
+- [x] 구입한 상품의 수량을 1 감소시킨다.
 - [ ] 상품 가격만큼 투입 금액을 감소시킨다.
 - [ ] 남은 투입 금액이 상품의 최저 가격보다 적거나, 모든 상품이 소진된 경우 바로 잔돈을 돌려준다.
   - 잔돈을 반환할 수 없는 경우 잔돈으로 반환할 수 있는 금액만 반환한다.
diff --git a/src/main/java/vendingmachine/Product.java b/src/main/java/vendingmachine/Product.java
new file mode 100644
index 000000000..327396713
--- /dev/null
+++ b/src/main/java/vendingmachine/Product.java
@@ -0,0 +1,20 @@
+package vendingmachine;
+
+import java.math.BigDecimal;
+
+public class Product {
+
+    private String name;
+    private BigDecimal price;
+    private int quantity;
+
+    public Product(String name, BigDecimal price, int quantity) {
+        this.name = name;
+        this.price = price;
+        this.quantity = quantity;
+    }
+
+    public void decreaseQuantity() {
+        this.quantity--;
+    }
+}

From aaa4f319d63a81cb09da65bb7560cfe00e7253a3 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 15:51:37 +0900
Subject: [PATCH 05/44] =?UTF-8?q?feat(InputAmount):=20=ED=88=AC=EC=9E=85?=
 =?UTF-8?q?=20=EA=B8=88=EC=95=A1=20=EC=83=81=ED=92=88=20=EA=B0=80=EA=B2=A9?=
 =?UTF-8?q?=EB=A7=8C=ED=81=BC=20=EA=B0=90=EC=86=8C=20=EA=B8=B0=EB=8A=A5=20?=
 =?UTF-8?q?=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                                |  4 ++--
 src/main/java/vendingmachine/InputAmount.java | 14 ++++++++++++++
 2 files changed, 16 insertions(+), 2 deletions(-)
 create mode 100644 src/main/java/vendingmachine/InputAmount.java

diff --git a/docs/README.md b/docs/README.md
index 2b394d165..cd1bf241f 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -4,15 +4,15 @@
 - [x] 입력 받은 금액에 따라 동전을 무작위로 생성한다.
 - [x] 입력 받은 상품 하나를 추가한다.
 - [x] 구입한 상품의 수량을 1 감소시킨다.
-- [ ] 상품 가격만큼 투입 금액을 감소시킨다.
+- [x] 상품 가격만큼 투입 금액을 감소시킨다.
 - [ ] 남은 투입 금액이 상품의 최저 가격보다 적거나, 모든 상품이 소진된 경우 바로 잔돈을 돌려준다.
   - 잔돈을 반환할 수 없는 경우 잔돈으로 반환할 수 있는 금액만 반환한다.
   - 반환되지 않은 금액은 자판기에 남는다.
 
 ## 입력
 - [ ] 자판기가 보유한 금액을 입력 받는다.
+- [ ] 자판기에 추가할 상품명, 가격, 수량을 입력 받는다. 
   - 상품명, 가격, 수량은 쉼표로, 개별 상품은 대괄호([])로 묶어 세미콜론(;)으로 구분한다.
-- [ ] 자판기에 추가할 상품명, 가격, 수량을 입력 받는다.
 - [ ] 투입 금액을 입력 받는다.
 - [ ] 구매할 상품의 상품명을 입력 받는다.
 
diff --git a/src/main/java/vendingmachine/InputAmount.java b/src/main/java/vendingmachine/InputAmount.java
new file mode 100644
index 000000000..2c8df5ade
--- /dev/null
+++ b/src/main/java/vendingmachine/InputAmount.java
@@ -0,0 +1,14 @@
+package vendingmachine;
+
+public class InputAmount {
+
+    private int amount;
+
+    private InputAmount(int amount) {
+        this.amount = amount;
+    }
+
+    public void decrease(int amount) {
+        this.amount -= amount;
+    }
+}

From e7fc6e77be89278fc815c5e4606fb9481eb65bfd Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 15:52:39 +0900
Subject: [PATCH 06/44] =?UTF-8?q?feat(InputView):=20=EC=9E=90=ED=8C=90?=
 =?UTF-8?q?=EA=B8=B0=EA=B0=80=20=EB=B3=B4=EC=9C=A0=ED=95=98=EA=B3=A0=20?=
 =?UTF-8?q?=EC=9E=88=EB=8A=94=20=EA=B8=88=EC=95=A1=20=EC=9E=85=EB=A0=A5=20?=
 =?UTF-8?q?=EA=B8=B0=EB=8A=A5=20=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                                |  2 +-
 .../java/vendingmachine/view/InputView.java   | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/vendingmachine/view/InputView.java

diff --git a/docs/README.md b/docs/README.md
index cd1bf241f..0e53116aa 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -10,7 +10,7 @@
   - 반환되지 않은 금액은 자판기에 남는다.
 
 ## 입력
-- [ ] 자판기가 보유한 금액을 입력 받는다.
+- [x] 자판기가 보유한 금액을 입력 받는다.
 - [ ] 자판기에 추가할 상품명, 가격, 수량을 입력 받는다. 
   - 상품명, 가격, 수량은 쉼표로, 개별 상품은 대괄호([])로 묶어 세미콜론(;)으로 구분한다.
 - [ ] 투입 금액을 입력 받는다.
diff --git a/src/main/java/vendingmachine/view/InputView.java b/src/main/java/vendingmachine/view/InputView.java
new file mode 100644
index 000000000..18734d159
--- /dev/null
+++ b/src/main/java/vendingmachine/view/InputView.java
@@ -0,0 +1,19 @@
+package vendingmachine.view;
+
+import camp.nextstep.edu.missionutils.Console;
+
+public class InputView {
+
+    private InputView() {
+    }
+
+    public static int readVendingMachineAmount() {
+        System.out.println("자판기가 보유하고 있는 금액을 입력해 주세요.");
+        String input = Console.readLine();
+        try {
+            return Integer.parseInt(input);
+        } catch (NumberFormatException e) {
+            throw new IllegalArgumentException("[ERROR] 숫자만 입력 가능합니다.");
+        }
+    }
+}

From 2538f2b1b8eb6ed94674d5adb41a9439f7e2ea48 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 15:53:07 +0900
Subject: [PATCH 07/44] =?UTF-8?q?feat(InputView):=20=EC=9E=90=ED=8C=90?=
 =?UTF-8?q?=EA=B8=B0=EC=97=90=20=EC=B6=94=EA=B0=80=ED=95=A0=20=EC=83=81?=
 =?UTF-8?q?=ED=92=88=20=EC=9E=85=EB=A0=A5=20=EA=B8=B0=EB=8A=A5=20=EA=B5=AC?=
 =?UTF-8?q?=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                                   |  2 +-
 src/main/java/vendingmachine/view/InputView.java | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/docs/README.md b/docs/README.md
index 0e53116aa..70d70bd3d 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -11,7 +11,7 @@
 
 ## 입력
 - [x] 자판기가 보유한 금액을 입력 받는다.
-- [ ] 자판기에 추가할 상품명, 가격, 수량을 입력 받는다. 
+- [x] 자판기에 추가할 상품명, 가격, 수량을 입력 받는다. 
   - 상품명, 가격, 수량은 쉼표로, 개별 상품은 대괄호([])로 묶어 세미콜론(;)으로 구분한다.
 - [ ] 투입 금액을 입력 받는다.
 - [ ] 구매할 상품의 상품명을 입력 받는다.
diff --git a/src/main/java/vendingmachine/view/InputView.java b/src/main/java/vendingmachine/view/InputView.java
index 18734d159..00427111e 100644
--- a/src/main/java/vendingmachine/view/InputView.java
+++ b/src/main/java/vendingmachine/view/InputView.java
@@ -1,5 +1,9 @@
 package vendingmachine.view;
 
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
 import camp.nextstep.edu.missionutils.Console;
 
 public class InputView {
@@ -16,4 +20,10 @@ public static int readVendingMachineAmount() {
             throw new IllegalArgumentException("[ERROR] 숫자만 입력 가능합니다.");
         }
     }
+
+    public static List<String> readProducts() {
+        System.out.println("상품명과 가격, 수량을 입력해 주세요.");
+        String input = Console.readLine();
+        return Arrays.stream(input.split(";")).collect(Collectors.toList());
+    }
 }

From fa3769c40814b0756116ea7a792285502792bb45 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 15:53:59 +0900
Subject: [PATCH 08/44] =?UTF-8?q?feat(InputView):=20=ED=88=AC=EC=9E=85=20?=
 =?UTF-8?q?=EA=B8=88=EC=95=A1=20=EC=9E=85=EB=A0=A5=20=EA=B8=B0=EB=8A=A5=20?=
 =?UTF-8?q?=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                                   |  2 +-
 src/main/java/vendingmachine/view/InputView.java | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/docs/README.md b/docs/README.md
index 70d70bd3d..b0fac302d 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -13,7 +13,7 @@
 - [x] 자판기가 보유한 금액을 입력 받는다.
 - [x] 자판기에 추가할 상품명, 가격, 수량을 입력 받는다. 
   - 상품명, 가격, 수량은 쉼표로, 개별 상품은 대괄호([])로 묶어 세미콜론(;)으로 구분한다.
-- [ ] 투입 금액을 입력 받는다.
+- [x] 투입 금액을 입력 받는다.
 - [ ] 구매할 상품의 상품명을 입력 받는다.
 
 ## 출력
diff --git a/src/main/java/vendingmachine/view/InputView.java b/src/main/java/vendingmachine/view/InputView.java
index 00427111e..b1e52103f 100644
--- a/src/main/java/vendingmachine/view/InputView.java
+++ b/src/main/java/vendingmachine/view/InputView.java
@@ -26,4 +26,14 @@ public static List<String> readProducts() {
         String input = Console.readLine();
         return Arrays.stream(input.split(";")).collect(Collectors.toList());
     }
+
+    public static int readInputAmount() {
+        System.out.println("투입 금액을 입력해 주세요.");
+        String input = Console.readLine();
+        try {
+            return Integer.parseInt(input);
+        } catch (NumberFormatException e) {
+            throw new IllegalArgumentException("[ERROR] 숫자만 입력 가능합니다.");
+        }
+    }
 }

From b02888a453e1080696c8d0384b08f0023546104e Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 15:55:22 +0900
Subject: [PATCH 09/44] =?UTF-8?q?feat(InputView):=20=EA=B5=AC=EB=A7=A4?=
 =?UTF-8?q?=ED=95=A0=20=EC=83=81=ED=92=88=EB=AA=85=20=EC=9E=85=EB=A0=A5=20?=
 =?UTF-8?q?=EA=B8=B0=EB=8A=A5=20=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                                   | 2 +-
 src/main/java/vendingmachine/view/InputView.java | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/docs/README.md b/docs/README.md
index b0fac302d..f6520e4b8 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -14,7 +14,7 @@
 - [x] 자판기에 추가할 상품명, 가격, 수량을 입력 받는다. 
   - 상품명, 가격, 수량은 쉼표로, 개별 상품은 대괄호([])로 묶어 세미콜론(;)으로 구분한다.
 - [x] 투입 금액을 입력 받는다.
-- [ ] 구매할 상품의 상품명을 입력 받는다.
+- [x] 구매할 상품의 상품명을 입력 받는다.
 
 ## 출력
 - [ ] 자판기가 보유한 동전 내역을 출력한다.
diff --git a/src/main/java/vendingmachine/view/InputView.java b/src/main/java/vendingmachine/view/InputView.java
index b1e52103f..2f7ba7ab7 100644
--- a/src/main/java/vendingmachine/view/InputView.java
+++ b/src/main/java/vendingmachine/view/InputView.java
@@ -36,4 +36,9 @@ public static int readInputAmount() {
             throw new IllegalArgumentException("[ERROR] 숫자만 입력 가능합니다.");
         }
     }
+
+    public static String readProductNameToPurchase() {
+        System.out.println("구매할 상품명을 입력해 주세요.");
+        return Console.readLine();
+    }
 }

From c831690152f02c2c840509d96f74e0ac2f93204d Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 16:00:57 +0900
Subject: [PATCH 10/44] =?UTF-8?q?feat(OutputView):=20=EC=9E=90=ED=8C=90?=
 =?UTF-8?q?=EA=B8=B0=EA=B0=80=20=EB=B3=B4=EC=9C=A0=ED=95=9C=20=EB=8F=99?=
 =?UTF-8?q?=EC=A0=84=20=EC=B6=9C=EB=A0=A5=20=EA=B8=B0=EB=8A=A5=20=EA=B5=AC?=
 =?UTF-8?q?=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                                   |  2 +-
 .../java/vendingmachine/view/OutputView.java     | 16 ++++++++++++++++
 2 files changed, 17 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/vendingmachine/view/OutputView.java

diff --git a/docs/README.md b/docs/README.md
index f6520e4b8..83226a90a 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -17,7 +17,7 @@
 - [x] 구매할 상품의 상품명을 입력 받는다.
 
 ## 출력
-- [ ] 자판기가 보유한 동전 내역을 출력한다.
+- [x] 자판기가 보유한 동전 내역을 출력한다.
 - [ ] 남은 투입 금액을 출력한다.
 - [ ] 잔돈을 출력한다.
 
diff --git a/src/main/java/vendingmachine/view/OutputView.java b/src/main/java/vendingmachine/view/OutputView.java
new file mode 100644
index 000000000..4fe40d703
--- /dev/null
+++ b/src/main/java/vendingmachine/view/OutputView.java
@@ -0,0 +1,16 @@
+package vendingmachine.view;
+
+import java.util.Map;
+
+public class OutputView {
+
+    private OutputView() {
+    }
+
+    public static void printCoinsOfVendingMachine(Map<String, Integer> coins) {
+        System.out.println("자판기가 보유한 동전");
+        for (String coin : coins.keySet()) {
+            System.out.println(coin + " - " + coins.get(coin) + "개");
+        }
+    }
+}

From 32d90976dd02755885c87eed23b75530add2f299 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 16:03:50 +0900
Subject: [PATCH 11/44] =?UTF-8?q?feat(OutputView):=20=EB=82=A8=EC=9D=80=20?=
 =?UTF-8?q?=ED=88=AC=EC=9E=85=20=EA=B8=88=EC=95=A1=20=EC=B6=9C=EB=A0=A5=20?=
 =?UTF-8?q?=EA=B8=B0=EB=8A=A5=20=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                                    | 2 +-
 src/main/java/vendingmachine/view/OutputView.java | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/docs/README.md b/docs/README.md
index 83226a90a..3feef63c7 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -18,7 +18,7 @@
 
 ## 출력
 - [x] 자판기가 보유한 동전 내역을 출력한다.
-- [ ] 남은 투입 금액을 출력한다.
+- [x] 남은 투입 금액을 출력한다.
 - [ ] 잔돈을 출력한다.
 
 ## 검증 내용
diff --git a/src/main/java/vendingmachine/view/OutputView.java b/src/main/java/vendingmachine/view/OutputView.java
index 4fe40d703..ca2970123 100644
--- a/src/main/java/vendingmachine/view/OutputView.java
+++ b/src/main/java/vendingmachine/view/OutputView.java
@@ -13,4 +13,8 @@ public static void printCoinsOfVendingMachine(Map<String, Integer> coins) {
             System.out.println(coin + " - " + coins.get(coin) + "개");
         }
     }
+
+    public static void printRemainingInputAmount(int amount) {
+        System.out.println("투입 금액: " + amount + "원");
+    }
 }

From 473978a72b29993606851771b01c34dc72ccb65f Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 16:07:56 +0900
Subject: [PATCH 12/44] =?UTF-8?q?feat(OutputView):=20=EC=9E=94=EB=8F=88=20?=
 =?UTF-8?q?=EC=B6=9C=EB=A0=A5=20=EA=B8=B0=EB=8A=A5=20=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                                    | 2 +-
 src/main/java/vendingmachine/view/OutputView.java | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/docs/README.md b/docs/README.md
index 3feef63c7..234783938 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -19,7 +19,7 @@
 ## 출력
 - [x] 자판기가 보유한 동전 내역을 출력한다.
 - [x] 남은 투입 금액을 출력한다.
-- [ ] 잔돈을 출력한다.
+- [x] 잔돈을 출력한다.
 
 ## 검증 내용
 - [ ] 상품 가격은 100원부터 시작하며, 10원으로 나누어떨어져야 한다.
\ No newline at end of file
diff --git a/src/main/java/vendingmachine/view/OutputView.java b/src/main/java/vendingmachine/view/OutputView.java
index ca2970123..88d71b09b 100644
--- a/src/main/java/vendingmachine/view/OutputView.java
+++ b/src/main/java/vendingmachine/view/OutputView.java
@@ -17,4 +17,11 @@ public static void printCoinsOfVendingMachine(Map<String, Integer> coins) {
     public static void printRemainingInputAmount(int amount) {
         System.out.println("투입 금액: " + amount + "원");
     }
+
+    public static void printChanges(Map<String, Integer> coins) {
+        System.out.println("잔돈");
+        for (String coin : coins.keySet()) {
+            System.out.println(coin + " - " + coins.get(coin) + "개");
+        }
+    }
 }

From 8c98537d15906be0e866503ebfe7ce5db8e256b7 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 16:13:27 +0900
Subject: [PATCH 13/44] =?UTF-8?q?docs(README):=20=EA=B8=B0=EB=8A=A5=20?=
 =?UTF-8?q?=EA=B5=AC=EC=B2=B4=ED=99=94?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/docs/README.md b/docs/README.md
index 234783938..a39bd29f6 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -5,7 +5,9 @@
 - [x] 입력 받은 상품 하나를 추가한다.
 - [x] 구입한 상품의 수량을 1 감소시킨다.
 - [x] 상품 가격만큼 투입 금액을 감소시킨다.
-- [ ] 남은 투입 금액이 상품의 최저 가격보다 적거나, 모든 상품이 소진된 경우 바로 잔돈을 돌려준다.
+- [ ] 남은 투입 금액이 상품의 최저 가격보다 적은지 확인한다.
+- [ ] 모든 상품이 소진되었는지 확인한다.
+- [ ] 잔돈을 반환한다.
   - 잔돈을 반환할 수 없는 경우 잔돈으로 반환할 수 있는 금액만 반환한다.
   - 반환되지 않은 금액은 자판기에 남는다.
 

From 4564904e3934fdac6c78f46d3fa216dc834d2752 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 16:22:17 +0900
Subject: [PATCH 14/44] =?UTF-8?q?feat(VendingMachine,=20Product):=20?=
 =?UTF-8?q?=EB=82=A8=EC=9D=80=20=ED=88=AC=EC=9E=85=20=EA=B8=88=EC=95=A1?=
 =?UTF-8?q?=EC=9D=B4=20=EC=83=81=ED=92=88=EC=9D=98=20=EC=B5=9C=EC=A0=80=20?=
 =?UTF-8?q?=EA=B0=80=EA=B2=A9=EB=B3=B4=EB=8B=A4=20=EC=A0=81=EC=9D=80?=
 =?UTF-8?q?=EC=A7=80=20=ED=99=95=EC=9D=B8=ED=95=98=EB=8A=94=20=EA=B8=B0?=
 =?UTF-8?q?=EB=8A=A5=20=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                                   |  2 +-
 src/main/java/vendingmachine/Product.java        | 10 ++++++----
 src/main/java/vendingmachine/VendingMachine.java | 12 +++++++-----
 3 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/docs/README.md b/docs/README.md
index a39bd29f6..89a18b31e 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -5,7 +5,7 @@
 - [x] 입력 받은 상품 하나를 추가한다.
 - [x] 구입한 상품의 수량을 1 감소시킨다.
 - [x] 상품 가격만큼 투입 금액을 감소시킨다.
-- [ ] 남은 투입 금액이 상품의 최저 가격보다 적은지 확인한다.
+- [x] 남은 투입 금액이 상품의 최저 가격보다 적은지 확인한다.
 - [ ] 모든 상품이 소진되었는지 확인한다.
 - [ ] 잔돈을 반환한다.
   - 잔돈을 반환할 수 없는 경우 잔돈으로 반환할 수 있는 금액만 반환한다.
diff --git a/src/main/java/vendingmachine/Product.java b/src/main/java/vendingmachine/Product.java
index 327396713..de9378b10 100644
--- a/src/main/java/vendingmachine/Product.java
+++ b/src/main/java/vendingmachine/Product.java
@@ -1,14 +1,12 @@
 package vendingmachine;
 
-import java.math.BigDecimal;
-
 public class Product {
 
     private String name;
-    private BigDecimal price;
+    private int price;
     private int quantity;
 
-    public Product(String name, BigDecimal price, int quantity) {
+    public Product(String name, int price, int quantity) {
         this.name = name;
         this.price = price;
         this.quantity = quantity;
@@ -17,4 +15,8 @@ public Product(String name, BigDecimal price, int quantity) {
     public void decreaseQuantity() {
         this.quantity--;
     }
+
+    public boolean isPriceGreaterThan(int amount) {
+        return price > amount;
+    }
 }
diff --git a/src/main/java/vendingmachine/VendingMachine.java b/src/main/java/vendingmachine/VendingMachine.java
index ec5a950a6..7b830be4f 100644
--- a/src/main/java/vendingmachine/VendingMachine.java
+++ b/src/main/java/vendingmachine/VendingMachine.java
@@ -1,16 +1,18 @@
 package vendingmachine;
 
+import java.util.ArrayList;
 import java.util.List;
 
 public class VendingMachine {
 
-    private List<Product> products;
-
-    public VendingMachine(List<Product> products) {
-        this.products = products;
-    }
+    private List<Product> products = new ArrayList<>();
 
     public void addProduct(Product product) {
         products.add(product);
     }
+
+    public boolean isAllPriceGreaterThan(int amount) {
+        return products.stream()
+                .allMatch(product -> product.isPriceGreaterThan(amount));
+    }
 }

From 9aa7b9575aba93d9f9b07c646baca0d44d3df5a2 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 16:22:48 +0900
Subject: [PATCH 15/44] =?UTF-8?q?feat(VendingMachineTest):=20=EB=82=A8?=
 =?UTF-8?q?=EC=9D=80=20=ED=88=AC=EC=9E=85=20=EA=B8=88=EC=95=A1=EC=9D=B4=20?=
 =?UTF-8?q?=EC=83=81=ED=92=88=EC=9D=98=20=EC=B5=9C=EC=A0=80=20=EA=B0=80?=
 =?UTF-8?q?=EA=B2=A9=EB=B3=B4=EB=8B=A4=20=EC=A0=81=EC=9D=80=EC=A7=80=20?=
 =?UTF-8?q?=ED=99=95=EC=9D=B8=ED=95=98=EB=8A=94=20=EA=B8=B0=EB=8A=A5=20?=
 =?UTF-8?q?=EB=8B=A8=EC=9C=84=20=ED=85=8C=EC=8A=A4=ED=8A=B8?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../vendingmachine/VendingMachineTest.java    | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 src/test/java/vendingmachine/VendingMachineTest.java

diff --git a/src/test/java/vendingmachine/VendingMachineTest.java b/src/test/java/vendingmachine/VendingMachineTest.java
new file mode 100644
index 000000000..569eb4c4a
--- /dev/null
+++ b/src/test/java/vendingmachine/VendingMachineTest.java
@@ -0,0 +1,21 @@
+package vendingmachine;
+
+import org.assertj.core.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+class VendingMachineTest {
+
+    @Test
+    void isAllPriceGreaterThan_True() {
+        // given
+        Product coke = new Product("콜라", 1500, 20);
+        Product sprite = new Product("사이다", 2000, 10);
+        VendingMachine vendingMachine = new VendingMachine();
+        vendingMachine.addProduct(coke);
+        vendingMachine.addProduct(sprite);
+
+        // when, then
+        Assertions.assertThat(vendingMachine.isAllPriceGreaterThan(1000)).isTrue();
+    }
+
+}
\ No newline at end of file

From a031dd71bd8586d5ab43de0e7dc7025ab716906c Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 16:25:49 +0900
Subject: [PATCH 16/44] =?UTF-8?q?feat(VendingMachine,=20Product):=20?=
 =?UTF-8?q?=EB=AA=A8=EB=93=A0=20=EC=83=81=ED=92=88=EC=9D=B4=20=EC=86=8C?=
 =?UTF-8?q?=EC=A7=84=EB=90=98=EC=97=88=EB=8A=94=EC=A7=80=20=ED=99=95?=
 =?UTF-8?q?=EC=9D=B8=ED=95=98=EB=8A=94=20=EA=B8=B0=EB=8A=A5=20=EA=B5=AC?=
 =?UTF-8?q?=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                                   | 2 +-
 src/main/java/vendingmachine/Product.java        | 4 ++++
 src/main/java/vendingmachine/VendingMachine.java | 5 +++++
 3 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/docs/README.md b/docs/README.md
index 89a18b31e..9591e0b49 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -6,7 +6,7 @@
 - [x] 구입한 상품의 수량을 1 감소시킨다.
 - [x] 상품 가격만큼 투입 금액을 감소시킨다.
 - [x] 남은 투입 금액이 상품의 최저 가격보다 적은지 확인한다.
-- [ ] 모든 상품이 소진되었는지 확인한다.
+- [x] 모든 상품이 소진되었는지 확인한다.
 - [ ] 잔돈을 반환한다.
   - 잔돈을 반환할 수 없는 경우 잔돈으로 반환할 수 있는 금액만 반환한다.
   - 반환되지 않은 금액은 자판기에 남는다.
diff --git a/src/main/java/vendingmachine/Product.java b/src/main/java/vendingmachine/Product.java
index de9378b10..4c9a05960 100644
--- a/src/main/java/vendingmachine/Product.java
+++ b/src/main/java/vendingmachine/Product.java
@@ -19,4 +19,8 @@ public void decreaseQuantity() {
     public boolean isPriceGreaterThan(int amount) {
         return price > amount;
     }
+
+    public boolean isSoldOut() {
+        return quantity == 0;
+    }
 }
diff --git a/src/main/java/vendingmachine/VendingMachine.java b/src/main/java/vendingmachine/VendingMachine.java
index 7b830be4f..7a36bf2e9 100644
--- a/src/main/java/vendingmachine/VendingMachine.java
+++ b/src/main/java/vendingmachine/VendingMachine.java
@@ -15,4 +15,9 @@ public boolean isAllPriceGreaterThan(int amount) {
         return products.stream()
                 .allMatch(product -> product.isPriceGreaterThan(amount));
     }
+
+    public boolean isAllProductSoldOut() {
+        return products.stream()
+                .allMatch(Product::isSoldOut);
+    }
 }

From 25da272ddde589c9aed015360a89a043af70df1b Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 16:26:03 +0900
Subject: [PATCH 17/44] =?UTF-8?q?feat(VendingMachineTest):=20=EB=AA=A8?=
 =?UTF-8?q?=EB=93=A0=20=EC=83=81=ED=92=88=EC=9D=B4=20=EC=86=8C=EC=A7=84?=
 =?UTF-8?q?=EB=90=98=EC=97=88=EB=8A=94=EC=A7=80=20=ED=99=95=EC=9D=B8?=
 =?UTF-8?q?=ED=95=98=EB=8A=94=20=EA=B8=B0=EB=8A=A5=20=EB=8B=A8=EC=9C=84=20?=
 =?UTF-8?q?=ED=85=8C=EC=8A=A4=ED=8A=B8?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/test/java/vendingmachine/VendingMachineTest.java | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/test/java/vendingmachine/VendingMachineTest.java b/src/test/java/vendingmachine/VendingMachineTest.java
index 569eb4c4a..7e3cb6cd5 100644
--- a/src/test/java/vendingmachine/VendingMachineTest.java
+++ b/src/test/java/vendingmachine/VendingMachineTest.java
@@ -18,4 +18,16 @@ void isAllPriceGreaterThan_True() {
         Assertions.assertThat(vendingMachine.isAllPriceGreaterThan(1000)).isTrue();
     }
 
+    @Test
+    void isAllProductSoldOut_True() {
+        // given
+        Product coke = new Product("콜라", 1500, 0);
+        Product sprite = new Product("사이다", 2000, 0);
+        VendingMachine vendingMachine = new VendingMachine();
+        vendingMachine.addProduct(coke);
+        vendingMachine.addProduct(sprite);
+
+        // when, then
+        Assertions.assertThat(vendingMachine.isAllProductSoldOut()).isTrue();
+    }
 }
\ No newline at end of file

From 026a5d0b8bc0054178c4621996b0eca56723a358 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 16:29:14 +0900
Subject: [PATCH 18/44] =?UTF-8?q?chore:=20domain=20=ED=8C=A8=ED=82=A4?=
 =?UTF-8?q?=EC=A7=80=20=EC=83=9D=EC=84=B1?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/vendingmachine/{ => domain}/Coin.java           | 2 +-
 src/main/java/vendingmachine/{ => domain}/InputAmount.java    | 2 +-
 src/main/java/vendingmachine/{ => domain}/Product.java        | 2 +-
 src/main/java/vendingmachine/{ => domain}/VendingMachine.java | 2 +-
 src/test/java/vendingmachine/VendingMachineTest.java          | 3 +++
 5 files changed, 7 insertions(+), 4 deletions(-)
 rename src/main/java/vendingmachine/{ => domain}/Coin.java (87%)
 rename src/main/java/vendingmachine/{ => domain}/InputAmount.java (86%)
 rename src/main/java/vendingmachine/{ => domain}/Product.java (93%)
 rename src/main/java/vendingmachine/{ => domain}/VendingMachine.java (94%)

diff --git a/src/main/java/vendingmachine/Coin.java b/src/main/java/vendingmachine/domain/Coin.java
similarity index 87%
rename from src/main/java/vendingmachine/Coin.java
rename to src/main/java/vendingmachine/domain/Coin.java
index c76293fbc..7bb89c146 100644
--- a/src/main/java/vendingmachine/Coin.java
+++ b/src/main/java/vendingmachine/domain/Coin.java
@@ -1,4 +1,4 @@
-package vendingmachine;
+package vendingmachine.domain;
 
 public enum Coin {
     COIN_500(500),
diff --git a/src/main/java/vendingmachine/InputAmount.java b/src/main/java/vendingmachine/domain/InputAmount.java
similarity index 86%
rename from src/main/java/vendingmachine/InputAmount.java
rename to src/main/java/vendingmachine/domain/InputAmount.java
index 2c8df5ade..c0dea9cd0 100644
--- a/src/main/java/vendingmachine/InputAmount.java
+++ b/src/main/java/vendingmachine/domain/InputAmount.java
@@ -1,4 +1,4 @@
-package vendingmachine;
+package vendingmachine.domain;
 
 public class InputAmount {
 
diff --git a/src/main/java/vendingmachine/Product.java b/src/main/java/vendingmachine/domain/Product.java
similarity index 93%
rename from src/main/java/vendingmachine/Product.java
rename to src/main/java/vendingmachine/domain/Product.java
index 4c9a05960..286f4c1ba 100644
--- a/src/main/java/vendingmachine/Product.java
+++ b/src/main/java/vendingmachine/domain/Product.java
@@ -1,4 +1,4 @@
-package vendingmachine;
+package vendingmachine.domain;
 
 public class Product {
 
diff --git a/src/main/java/vendingmachine/VendingMachine.java b/src/main/java/vendingmachine/domain/VendingMachine.java
similarity index 94%
rename from src/main/java/vendingmachine/VendingMachine.java
rename to src/main/java/vendingmachine/domain/VendingMachine.java
index 7a36bf2e9..56b662c77 100644
--- a/src/main/java/vendingmachine/VendingMachine.java
+++ b/src/main/java/vendingmachine/domain/VendingMachine.java
@@ -1,4 +1,4 @@
-package vendingmachine;
+package vendingmachine.domain;
 
 import java.util.ArrayList;
 import java.util.List;
diff --git a/src/test/java/vendingmachine/VendingMachineTest.java b/src/test/java/vendingmachine/VendingMachineTest.java
index 7e3cb6cd5..faa5b0b4f 100644
--- a/src/test/java/vendingmachine/VendingMachineTest.java
+++ b/src/test/java/vendingmachine/VendingMachineTest.java
@@ -3,6 +3,9 @@
 import org.assertj.core.api.Assertions;
 import org.junit.jupiter.api.Test;
 
+import vendingmachine.domain.Product;
+import vendingmachine.domain.VendingMachine;
+
 class VendingMachineTest {
 
     @Test

From 60f36e26a39fb5cea8c05edafb490bd986e7f363 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 17:05:14 +0900
Subject: [PATCH 19/44] =?UTF-8?q?feat(Coin,=20VendingMachine,=20RandomNumb?=
 =?UTF-8?q?erGenerator):=20=EB=8F=99=EC=A0=84=20=EC=83=9D=EC=84=B1=20?=
 =?UTF-8?q?=EA=B8=B0=EB=8A=A5=20=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../vendingmachine/RandomNumberGenerator.java |  2 +-
 src/main/java/vendingmachine/domain/Coin.java | 21 +++++++++++++-
 .../vendingmachine/domain/VendingMachine.java | 28 +++++++++++++++++++
 3 files changed, 49 insertions(+), 2 deletions(-)

diff --git a/src/main/java/vendingmachine/RandomNumberGenerator.java b/src/main/java/vendingmachine/RandomNumberGenerator.java
index 47bd1fd9f..015a654c1 100644
--- a/src/main/java/vendingmachine/RandomNumberGenerator.java
+++ b/src/main/java/vendingmachine/RandomNumberGenerator.java
@@ -9,7 +9,7 @@ public class RandomNumberGenerator {
     private RandomNumberGenerator() {
     }
 
-    public int generate(List<Integer> numbers) {
+    public static int generate(List<Integer> numbers) {
         return Randoms.pickNumberInList(numbers);
     }
 }
diff --git a/src/main/java/vendingmachine/domain/Coin.java b/src/main/java/vendingmachine/domain/Coin.java
index 7bb89c146..de35fee6f 100644
--- a/src/main/java/vendingmachine/domain/Coin.java
+++ b/src/main/java/vendingmachine/domain/Coin.java
@@ -1,5 +1,9 @@
 package vendingmachine.domain;
 
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
 public enum Coin {
     COIN_500(500),
     COIN_100(100),
@@ -12,5 +16,20 @@ public enum Coin {
         this.amount = amount;
     }
 
-    // 추가 기능 구현
+    public static List<Integer> getCoinAmounts() {
+        return Arrays.stream(Coin.values())
+                .map(coin -> coin.amount)
+                .collect(Collectors.toList());
+    }
+
+    public static Coin from(int amount) {
+        return Arrays.stream(Coin.values())
+                .filter(coin -> coin.amount == amount)
+                .findFirst()
+                .orElseThrow(IllegalArgumentException::new);
+    }
+
+    public int getAmount() {
+        return amount;
+    }
 }
diff --git a/src/main/java/vendingmachine/domain/VendingMachine.java b/src/main/java/vendingmachine/domain/VendingMachine.java
index 56b662c77..57fea5156 100644
--- a/src/main/java/vendingmachine/domain/VendingMachine.java
+++ b/src/main/java/vendingmachine/domain/VendingMachine.java
@@ -1,12 +1,36 @@
 package vendingmachine.domain;
 
 import java.util.ArrayList;
+import java.util.EnumMap;
 import java.util.List;
+import java.util.Map;
+
+import vendingmachine.RandomNumberGenerator;
 
 public class VendingMachine {
 
+    private Map<Coin, Integer> coins = new EnumMap<>(Coin.class);
     private List<Product> products = new ArrayList<>();
 
+    public VendingMachine() {
+        coins.put(Coin.COIN_500, 0);
+        coins.put(Coin.COIN_100, 0);
+        coins.put(Coin.COIN_50, 0);
+        coins.put(Coin.COIN_10, 0);
+    }
+
+    public void addCoins(int amount) {
+        while (amount > 0) {
+            int generatedNumber = RandomNumberGenerator.generate(Coin.getCoinAmounts());
+            if (generatedNumber > amount) {
+                continue;
+            }
+            Coin coin = Coin.from(generatedNumber);
+            coins.put(coin, coins.getOrDefault(coin, 0) + 1);
+            amount -= generatedNumber;
+        }
+    }
+
     public void addProduct(Product product) {
         products.add(product);
     }
@@ -20,4 +44,8 @@ public boolean isAllProductSoldOut() {
         return products.stream()
                 .allMatch(Product::isSoldOut);
     }
+
+    public Map<Coin, Integer> getCoins() {
+        return coins;
+    }
 }

From 673a84263430f74624b21691fba031c8a1ba29e6 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 17:09:05 +0900
Subject: [PATCH 20/44] =?UTF-8?q?feat(Controller,=20VendingMachine,=20Outp?=
 =?UTF-8?q?utView):=20=EC=9E=90=ED=8C=90=EA=B8=B0=20=EB=8F=99=EC=A0=84=20?=
 =?UTF-8?q?=EC=83=9D=EC=84=B1=20=EB=B0=8F=20=EC=B6=9C=EB=A0=A5=20=EA=B8=B0?=
 =?UTF-8?q?=EB=8A=A5=20=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/vendingmachine/Application.java     |  4 ++++
 .../vendingmachine/controller/Controller.java     | 15 +++++++++++++++
 .../vendingmachine/domain/VendingMachine.java     |  2 +-
 src/main/java/vendingmachine/view/OutputView.java |  8 +++++---
 4 files changed, 25 insertions(+), 4 deletions(-)
 create mode 100644 src/main/java/vendingmachine/controller/Controller.java

diff --git a/src/main/java/vendingmachine/Application.java b/src/main/java/vendingmachine/Application.java
index 9d3be447b..53cdbbb8d 100644
--- a/src/main/java/vendingmachine/Application.java
+++ b/src/main/java/vendingmachine/Application.java
@@ -1,7 +1,11 @@
 package vendingmachine;
 
+import vendingmachine.controller.Controller;
+
 public class Application {
     public static void main(String[] args) {
         // TODO: 프로그램 구현
+        Controller controller = new Controller();
+        controller.run();
     }
 }
diff --git a/src/main/java/vendingmachine/controller/Controller.java b/src/main/java/vendingmachine/controller/Controller.java
new file mode 100644
index 000000000..659327d85
--- /dev/null
+++ b/src/main/java/vendingmachine/controller/Controller.java
@@ -0,0 +1,15 @@
+package vendingmachine.controller;
+
+import vendingmachine.domain.VendingMachine;
+import vendingmachine.view.InputView;
+import vendingmachine.view.OutputView;
+
+public class Controller {
+
+    public void run() {
+        int vendingMachineAmount = InputView.readVendingMachineAmount();
+        VendingMachine vendingMachine = new VendingMachine();
+        vendingMachine.addCoins(vendingMachineAmount);
+        OutputView.printCoinsOfVendingMachine(vendingMachine.getCoins());
+    }
+}
diff --git a/src/main/java/vendingmachine/domain/VendingMachine.java b/src/main/java/vendingmachine/domain/VendingMachine.java
index 57fea5156..0d99240dc 100644
--- a/src/main/java/vendingmachine/domain/VendingMachine.java
+++ b/src/main/java/vendingmachine/domain/VendingMachine.java
@@ -26,7 +26,7 @@ public void addCoins(int amount) {
                 continue;
             }
             Coin coin = Coin.from(generatedNumber);
-            coins.put(coin, coins.getOrDefault(coin, 0) + 1);
+            coins.put(coin, coins.get(coin) + 1);
             amount -= generatedNumber;
         }
     }
diff --git a/src/main/java/vendingmachine/view/OutputView.java b/src/main/java/vendingmachine/view/OutputView.java
index 88d71b09b..1fbb789e9 100644
--- a/src/main/java/vendingmachine/view/OutputView.java
+++ b/src/main/java/vendingmachine/view/OutputView.java
@@ -2,15 +2,17 @@
 
 import java.util.Map;
 
+import vendingmachine.domain.Coin;
+
 public class OutputView {
 
     private OutputView() {
     }
 
-    public static void printCoinsOfVendingMachine(Map<String, Integer> coins) {
+    public static void printCoinsOfVendingMachine(Map<Coin, Integer> coins) {
         System.out.println("자판기가 보유한 동전");
-        for (String coin : coins.keySet()) {
-            System.out.println(coin + " - " + coins.get(coin) + "개");
+        for (Coin coin : coins.keySet()) {
+            System.out.println(coin.getAmount() + "원 - " + coins.get(coin) + "개");
         }
     }
 

From 60abfeebbe55eefcf1b52b6a7597760aa3763c85 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 17:20:29 +0900
Subject: [PATCH 21/44] =?UTF-8?q?feat(Controller,=20InputView):=20?=
 =?UTF-8?q?=EC=83=81=ED=92=88=20=EC=B6=94=EA=B0=80=20=EA=B8=B0=EB=8A=A5=20?=
 =?UTF-8?q?=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/vendingmachine/controller/Controller.java   | 12 ++++++++++++
 src/main/java/vendingmachine/view/InputView.java     |  4 +++-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/main/java/vendingmachine/controller/Controller.java b/src/main/java/vendingmachine/controller/Controller.java
index 659327d85..4814a9791 100644
--- a/src/main/java/vendingmachine/controller/Controller.java
+++ b/src/main/java/vendingmachine/controller/Controller.java
@@ -1,5 +1,11 @@
 package vendingmachine.controller;
 
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import vendingmachine.domain.Product;
 import vendingmachine.domain.VendingMachine;
 import vendingmachine.view.InputView;
 import vendingmachine.view.OutputView;
@@ -11,5 +17,11 @@ public void run() {
         VendingMachine vendingMachine = new VendingMachine();
         vendingMachine.addCoins(vendingMachineAmount);
         OutputView.printCoinsOfVendingMachine(vendingMachine.getCoins());
+
+        List<String> inputProducts = InputView.readProducts();
+        for (String inputProduct : inputProducts) {
+            String[] split = inputProduct.split(",");
+            vendingMachine.addProduct(new Product(split[0], Integer.parseInt(split[1]), Integer.parseInt(split[2])));
+        }
     }
 }
diff --git a/src/main/java/vendingmachine/view/InputView.java b/src/main/java/vendingmachine/view/InputView.java
index 2f7ba7ab7..35b723b36 100644
--- a/src/main/java/vendingmachine/view/InputView.java
+++ b/src/main/java/vendingmachine/view/InputView.java
@@ -24,7 +24,9 @@ public static int readVendingMachineAmount() {
     public static List<String> readProducts() {
         System.out.println("상품명과 가격, 수량을 입력해 주세요.");
         String input = Console.readLine();
-        return Arrays.stream(input.split(";")).collect(Collectors.toList());
+        return Arrays.stream(input.split(";"))
+                .map(product -> product.substring(1, product.length() - 1))
+                .collect(Collectors.toList());
     }
 
     public static int readInputAmount() {

From 46cb1b456c7b2b38bb9f65ef9e6db3f0236528ca Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 17:39:42 +0900
Subject: [PATCH 22/44] =?UTF-8?q?feat:=20=EC=83=81=ED=92=88=20=EA=B5=AC?=
 =?UTF-8?q?=EB=A7=A4=20=EA=B8=B0=EB=8A=A5=20=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/vendingmachine/controller/Controller.java    | 11 +++++++++++
 src/main/java/vendingmachine/domain/InputAmount.java  |  6 +++++-
 src/main/java/vendingmachine/domain/Product.java      |  8 ++++++++
 .../java/vendingmachine/domain/VendingMachine.java    | 10 ++++++++++
 4 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/src/main/java/vendingmachine/controller/Controller.java b/src/main/java/vendingmachine/controller/Controller.java
index 4814a9791..3a54d9d88 100644
--- a/src/main/java/vendingmachine/controller/Controller.java
+++ b/src/main/java/vendingmachine/controller/Controller.java
@@ -5,6 +5,7 @@
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
+import vendingmachine.domain.InputAmount;
 import vendingmachine.domain.Product;
 import vendingmachine.domain.VendingMachine;
 import vendingmachine.view.InputView;
@@ -23,5 +24,15 @@ public void run() {
             String[] split = inputProduct.split(",");
             vendingMachine.addProduct(new Product(split[0], Integer.parseInt(split[1]), Integer.parseInt(split[2])));
         }
+
+        InputAmount inputAmount = new InputAmount(InputView.readInputAmount());
+        while (true) {
+            OutputView.printRemainingInputAmount(inputAmount.getAmount());
+            if (vendingMachine.isAllPriceGreaterThan(inputAmount.getAmount()) || vendingMachine.isAllProductSoldOut()) {
+                break;
+            }
+            String productNameToPurchase = InputView.readProductNameToPurchase();
+            vendingMachine.purchase(productNameToPurchase, inputAmount);
+        }
     }
 }
diff --git a/src/main/java/vendingmachine/domain/InputAmount.java b/src/main/java/vendingmachine/domain/InputAmount.java
index c0dea9cd0..001bdeb56 100644
--- a/src/main/java/vendingmachine/domain/InputAmount.java
+++ b/src/main/java/vendingmachine/domain/InputAmount.java
@@ -4,11 +4,15 @@ public class InputAmount {
 
     private int amount;
 
-    private InputAmount(int amount) {
+    public InputAmount(int amount) {
         this.amount = amount;
     }
 
     public void decrease(int amount) {
         this.amount -= amount;
     }
+
+    public int getAmount() {
+        return amount;
+    }
 }
diff --git a/src/main/java/vendingmachine/domain/Product.java b/src/main/java/vendingmachine/domain/Product.java
index 286f4c1ba..e63b2be0e 100644
--- a/src/main/java/vendingmachine/domain/Product.java
+++ b/src/main/java/vendingmachine/domain/Product.java
@@ -23,4 +23,12 @@ public boolean isPriceGreaterThan(int amount) {
     public boolean isSoldOut() {
         return quantity == 0;
     }
+
+    public boolean isName(String name) {
+        return this.name.equals(name);
+    }
+
+    public int getPrice() {
+        return price;
+    }
 }
diff --git a/src/main/java/vendingmachine/domain/VendingMachine.java b/src/main/java/vendingmachine/domain/VendingMachine.java
index 0d99240dc..0bacfaf5f 100644
--- a/src/main/java/vendingmachine/domain/VendingMachine.java
+++ b/src/main/java/vendingmachine/domain/VendingMachine.java
@@ -4,6 +4,7 @@
 import java.util.EnumMap;
 import java.util.List;
 import java.util.Map;
+import java.util.stream.Collectors;
 
 import vendingmachine.RandomNumberGenerator;
 
@@ -45,6 +46,15 @@ public boolean isAllProductSoldOut() {
                 .allMatch(Product::isSoldOut);
     }
 
+    public void purchase(String productName, InputAmount inputAmount) {
+        Product productForPurchase = products.stream()
+                .filter(product -> product.isName(productName))
+                .findFirst()
+                .orElseThrow(() -> new IllegalArgumentException("[ERROR] 존재하지 않는 상품입니다."));
+        productForPurchase.decreaseQuantity();
+        inputAmount.decrease(productForPurchase.getPrice());
+    }
+
     public Map<Coin, Integer> getCoins() {
         return coins;
     }

From 6dac1585c7cbd8a17ffc6bea6c6bddab25b04302 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 18:21:08 +0900
Subject: [PATCH 23/44] =?UTF-8?q?feat:=20=EC=9E=94=EB=8F=88=20=EB=B0=98?=
 =?UTF-8?q?=ED=99=98=20=EA=B8=B0=EB=8A=A5=20=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../vendingmachine/controller/Controller.java   |  5 +++++
 .../vendingmachine/domain/VendingMachine.java   | 17 ++++++++++++++++-
 .../java/vendingmachine/view/OutputView.java    |  6 +++---
 3 files changed, 24 insertions(+), 4 deletions(-)

diff --git a/src/main/java/vendingmachine/controller/Controller.java b/src/main/java/vendingmachine/controller/Controller.java
index 3a54d9d88..74e7a9f2f 100644
--- a/src/main/java/vendingmachine/controller/Controller.java
+++ b/src/main/java/vendingmachine/controller/Controller.java
@@ -2,9 +2,11 @@
 
 import java.util.Arrays;
 import java.util.List;
+import java.util.Map;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
+import vendingmachine.domain.Coin;
 import vendingmachine.domain.InputAmount;
 import vendingmachine.domain.Product;
 import vendingmachine.domain.VendingMachine;
@@ -34,5 +36,8 @@ public void run() {
             String productNameToPurchase = InputView.readProductNameToPurchase();
             vendingMachine.purchase(productNameToPurchase, inputAmount);
         }
+
+        Map<Coin, Integer> changes = vendingMachine.changes(inputAmount);
+        OutputView.printChanges(changes);
     }
 }
diff --git a/src/main/java/vendingmachine/domain/VendingMachine.java b/src/main/java/vendingmachine/domain/VendingMachine.java
index 0bacfaf5f..9fdc97e76 100644
--- a/src/main/java/vendingmachine/domain/VendingMachine.java
+++ b/src/main/java/vendingmachine/domain/VendingMachine.java
@@ -4,7 +4,6 @@
 import java.util.EnumMap;
 import java.util.List;
 import java.util.Map;
-import java.util.stream.Collectors;
 
 import vendingmachine.RandomNumberGenerator;
 
@@ -55,6 +54,22 @@ public void purchase(String productName, InputAmount inputAmount) {
         inputAmount.decrease(productForPurchase.getPrice());
     }
 
+    public Map<Coin, Integer> changes(InputAmount inputAmount) {
+        Map<Coin, Integer> changes = new EnumMap<>(Coin.class);
+        for (Coin coin : Coin.values()) {
+            int count = coins.get(coin);
+            for (int i = 0; i < count; i++) {
+                if (inputAmount.getAmount() <= 0) {
+                    break;
+                }
+                inputAmount.decrease(coin.getAmount());
+                coins.replace(coin, coins.get(coin) - 1);
+                changes.put(coin, changes.getOrDefault(coin, 0) + 1);
+            }
+        }
+        return changes;
+    }
+
     public Map<Coin, Integer> getCoins() {
         return coins;
     }
diff --git a/src/main/java/vendingmachine/view/OutputView.java b/src/main/java/vendingmachine/view/OutputView.java
index 1fbb789e9..b8ef1d3b4 100644
--- a/src/main/java/vendingmachine/view/OutputView.java
+++ b/src/main/java/vendingmachine/view/OutputView.java
@@ -20,10 +20,10 @@ public static void printRemainingInputAmount(int amount) {
         System.out.println("투입 금액: " + amount + "원");
     }
 
-    public static void printChanges(Map<String, Integer> coins) {
+    public static void printChanges(Map<Coin, Integer> coins) {
         System.out.println("잔돈");
-        for (String coin : coins.keySet()) {
-            System.out.println(coin + " - " + coins.get(coin) + "개");
+        for (Coin coin : coins.keySet()) {
+            System.out.println(coin.getAmount() + "원 - " + coins.get(coin) + "개");
         }
     }
 }

From 04ce38c81917393ee1bd2ce798165c9cac9a18cf Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 18:22:18 +0900
Subject: [PATCH 24/44] =?UTF-8?q?docs(README):=20=EA=B8=B0=EB=8A=A5=20?=
 =?UTF-8?q?=EB=AA=A9=EB=A1=9D=20=EC=B5=9C=EC=8B=A0=ED=99=94?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/README.md b/docs/README.md
index 9591e0b49..826d7b845 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -7,7 +7,7 @@
 - [x] 상품 가격만큼 투입 금액을 감소시킨다.
 - [x] 남은 투입 금액이 상품의 최저 가격보다 적은지 확인한다.
 - [x] 모든 상품이 소진되었는지 확인한다.
-- [ ] 잔돈을 반환한다.
+- [x] 잔돈을 반환한다.
   - 잔돈을 반환할 수 없는 경우 잔돈으로 반환할 수 있는 금액만 반환한다.
   - 반환되지 않은 금액은 자판기에 남는다.
 

From cb525afc6b83f9b771bcf20bb0e8a33de5119132 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 18:23:04 +0900
Subject: [PATCH 25/44] =?UTF-8?q?feat(OutputView):=20=EC=97=90=EB=9F=AC=20?=
 =?UTF-8?q?=EB=A9=94=EC=8B=9C=EC=A7=80=20=EC=B6=9C=EB=A0=A5=20=EA=B8=B0?=
 =?UTF-8?q?=EB=8A=A5=20=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/vendingmachine/controller/Controller.java     | 10 ++++++++++
 src/main/java/vendingmachine/view/OutputView.java      |  4 ++++
 2 files changed, 14 insertions(+)

diff --git a/src/main/java/vendingmachine/controller/Controller.java b/src/main/java/vendingmachine/controller/Controller.java
index 74e7a9f2f..7d7e6556a 100644
--- a/src/main/java/vendingmachine/controller/Controller.java
+++ b/src/main/java/vendingmachine/controller/Controller.java
@@ -3,6 +3,7 @@
 import java.util.Arrays;
 import java.util.List;
 import java.util.Map;
+import java.util.function.Supplier;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
@@ -40,4 +41,13 @@ public void run() {
         Map<Coin, Integer> changes = vendingMachine.changes(inputAmount);
         OutputView.printChanges(changes);
     }
+
+    private <T> T repeatReadForInvalid(Supplier<T> reader) {
+        try {
+            return reader.get();
+        } catch (IllegalArgumentException e) {
+            OutputView.printErrorMessage(e);
+            return repeatReadForInvalid(reader);
+        }
+    }
 }
diff --git a/src/main/java/vendingmachine/view/OutputView.java b/src/main/java/vendingmachine/view/OutputView.java
index b8ef1d3b4..00e226b90 100644
--- a/src/main/java/vendingmachine/view/OutputView.java
+++ b/src/main/java/vendingmachine/view/OutputView.java
@@ -26,4 +26,8 @@ public static void printChanges(Map<Coin, Integer> coins) {
             System.out.println(coin.getAmount() + "원 - " + coins.get(coin) + "개");
         }
     }
+
+    public static void printErrorMessage(IllegalArgumentException e) {
+        System.out.println(e.getMessage());
+    }
 }

From a8e38799e2fd10bf6bad162b6ef9cd38ca3fba02 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 18:27:02 +0900
Subject: [PATCH 26/44] =?UTF-8?q?feat(Product,=20Controller):=20=EC=83=81?=
 =?UTF-8?q?=ED=92=88=20=EA=B0=80=EA=B2=A9=20=EA=B2=80=EC=A6=9D=20=EA=B8=B0?=
 =?UTF-8?q?=EB=8A=A5=20=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                                         |  2 +-
 .../java/vendingmachine/controller/Controller.java     |  9 +++++----
 src/main/java/vendingmachine/domain/Product.java       | 10 ++++++++++
 3 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/docs/README.md b/docs/README.md
index 826d7b845..3c3f6fef2 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -24,4 +24,4 @@
 - [x] 잔돈을 출력한다.
 
 ## 검증 내용
-- [ ] 상품 가격은 100원부터 시작하며, 10원으로 나누어떨어져야 한다.
\ No newline at end of file
+- [x] 상품 가격은 100원부터 시작하며, 10원으로 나누어떨어져야 한다.
\ No newline at end of file
diff --git a/src/main/java/vendingmachine/controller/Controller.java b/src/main/java/vendingmachine/controller/Controller.java
index 7d7e6556a..8b890697b 100644
--- a/src/main/java/vendingmachine/controller/Controller.java
+++ b/src/main/java/vendingmachine/controller/Controller.java
@@ -1,11 +1,8 @@
 package vendingmachine.controller;
 
-import java.util.Arrays;
 import java.util.List;
 import java.util.Map;
 import java.util.function.Supplier;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
 
 import vendingmachine.domain.Coin;
 import vendingmachine.domain.InputAmount;
@@ -25,7 +22,7 @@ public void run() {
         List<String> inputProducts = InputView.readProducts();
         for (String inputProduct : inputProducts) {
             String[] split = inputProduct.split(",");
-            vendingMachine.addProduct(new Product(split[0], Integer.parseInt(split[1]), Integer.parseInt(split[2])));
+            vendingMachine.addProduct(repeatReadForInvalid(() -> this.createProduct(split)));
         }
 
         InputAmount inputAmount = new InputAmount(InputView.readInputAmount());
@@ -42,6 +39,10 @@ public void run() {
         OutputView.printChanges(changes);
     }
 
+    private Product createProduct(String[] split) {
+        return new Product(split[0], Integer.parseInt(split[1]), Integer.parseInt(split[2]));
+    }
+
     private <T> T repeatReadForInvalid(Supplier<T> reader) {
         try {
             return reader.get();
diff --git a/src/main/java/vendingmachine/domain/Product.java b/src/main/java/vendingmachine/domain/Product.java
index e63b2be0e..1d8fff1e2 100644
--- a/src/main/java/vendingmachine/domain/Product.java
+++ b/src/main/java/vendingmachine/domain/Product.java
@@ -8,10 +8,20 @@ public class Product {
 
     public Product(String name, int price, int quantity) {
         this.name = name;
+        validatePrice(price);
         this.price = price;
         this.quantity = quantity;
     }
 
+    private void validatePrice(int price) {
+        if (price < 100) {
+            throw new IllegalArgumentException("[ERROR] 상품 가격은 100원 이상이어야 합니다.");
+        }
+        if (price % 10 != 0) {
+            throw new IllegalArgumentException("[ERROR] 상품 가격은 10원 단위만 가능합니다.");
+        }
+    }
+
     public void decreaseQuantity() {
         this.quantity--;
     }

From 9629730fed42f6e1a7c839fa44d636d1ca567e72 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 18:32:09 +0900
Subject: [PATCH 27/44] =?UTF-8?q?feat(VendingMachineAmount,=20Controller):?=
 =?UTF-8?q?=20=EC=9E=90=ED=8C=90=EA=B8=B0=20=EB=B3=B4=EC=9C=A0=20=EA=B8=88?=
 =?UTF-8?q?=EC=95=A1=20=EA=B2=80=EC=A6=9D=20=EA=B8=B0=EB=8A=A5=20=EA=B5=AC?=
 =?UTF-8?q?=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                                |  3 ++-
 .../vendingmachine/controller/Controller.java |  9 +++++--
 .../domain/VendingMachineAmount.java          | 24 +++++++++++++++++++
 3 files changed, 33 insertions(+), 3 deletions(-)
 create mode 100644 src/main/java/vendingmachine/domain/VendingMachineAmount.java

diff --git a/docs/README.md b/docs/README.md
index 3c3f6fef2..d921a8047 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -24,4 +24,5 @@
 - [x] 잔돈을 출력한다.
 
 ## 검증 내용
-- [x] 상품 가격은 100원부터 시작하며, 10원으로 나누어떨어져야 한다.
\ No newline at end of file
+- [x] 상품 가격은 100원부터 시작하며, 10원으로 나누어떨어져야 한다.
+- [x] 자판기 보유 금액은 10원부터 시작하며, 10원으로 나누어떨어져야 한다.
\ No newline at end of file
diff --git a/src/main/java/vendingmachine/controller/Controller.java b/src/main/java/vendingmachine/controller/Controller.java
index 8b890697b..edea05234 100644
--- a/src/main/java/vendingmachine/controller/Controller.java
+++ b/src/main/java/vendingmachine/controller/Controller.java
@@ -8,15 +8,16 @@
 import vendingmachine.domain.InputAmount;
 import vendingmachine.domain.Product;
 import vendingmachine.domain.VendingMachine;
+import vendingmachine.domain.VendingMachineAmount;
 import vendingmachine.view.InputView;
 import vendingmachine.view.OutputView;
 
 public class Controller {
 
     public void run() {
-        int vendingMachineAmount = InputView.readVendingMachineAmount();
+        VendingMachineAmount vendingMachineAmount = repeatReadForInvalid(this::createVendingMachineAmount);
         VendingMachine vendingMachine = new VendingMachine();
-        vendingMachine.addCoins(vendingMachineAmount);
+        vendingMachine.addCoins(vendingMachineAmount.getVendingMachineAmount());
         OutputView.printCoinsOfVendingMachine(vendingMachine.getCoins());
 
         List<String> inputProducts = InputView.readProducts();
@@ -43,6 +44,10 @@ private Product createProduct(String[] split) {
         return new Product(split[0], Integer.parseInt(split[1]), Integer.parseInt(split[2]));
     }
 
+    private VendingMachineAmount createVendingMachineAmount() {
+        return new VendingMachineAmount(InputView.readVendingMachineAmount());
+    }
+
     private <T> T repeatReadForInvalid(Supplier<T> reader) {
         try {
             return reader.get();
diff --git a/src/main/java/vendingmachine/domain/VendingMachineAmount.java b/src/main/java/vendingmachine/domain/VendingMachineAmount.java
new file mode 100644
index 000000000..41460a27d
--- /dev/null
+++ b/src/main/java/vendingmachine/domain/VendingMachineAmount.java
@@ -0,0 +1,24 @@
+package vendingmachine.domain;
+
+public class VendingMachineAmount {
+
+    private int vendingMachineAmount;
+
+    public VendingMachineAmount(int vendingMachineAmount) {
+        validate(vendingMachineAmount);
+        this.vendingMachineAmount = vendingMachineAmount;
+    }
+
+    private void validate(int vendingMachineAmount) {
+        if (vendingMachineAmount < 10) {
+            throw new IllegalArgumentException("[ERROR] 자판기가 보유 금액은 10원 이상이어야 합니다.");
+        }
+        if (vendingMachineAmount % 10 != 0) {
+            throw new IllegalArgumentException("[ERROR] 자판기 보유 금액은 10원 단위만 가능합니다.");
+        }
+    }
+
+    public int getVendingMachineAmount() {
+        return vendingMachineAmount;
+    }
+}

From f7a19baa4c2ea2d3b930f187e2181594c21ed74b Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 18:32:44 +0900
Subject: [PATCH 28/44] =?UTF-8?q?docs(README):=20=EA=B8=B0=EB=8A=A5=20?=
 =?UTF-8?q?=EB=AA=A9=EB=A1=9D=20=EB=AF=B8=EC=85=98=20=EC=A0=9C=EB=AA=A9=20?=
 =?UTF-8?q?=EC=88=98=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/README.md b/docs/README.md
index d921a8047..550199353 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -1,4 +1,4 @@
-# 미션 제목
+# 자판기
 
 ## 기능
 - [x] 입력 받은 금액에 따라 동전을 무작위로 생성한다.

From 506f681dda4c039bc9f47a0198919c54115f3e0e Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 18:43:08 +0900
Subject: [PATCH 29/44] =?UTF-8?q?refactor(VendingMachine):=20=EB=A9=94?=
 =?UTF-8?q?=EC=84=9C=EB=93=9C=20=EB=B6=84=EB=A6=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../vendingmachine/domain/VendingMachine.java | 21 +++++++++++--------
 1 file changed, 12 insertions(+), 9 deletions(-)

diff --git a/src/main/java/vendingmachine/domain/VendingMachine.java b/src/main/java/vendingmachine/domain/VendingMachine.java
index 9fdc97e76..7bc598778 100644
--- a/src/main/java/vendingmachine/domain/VendingMachine.java
+++ b/src/main/java/vendingmachine/domain/VendingMachine.java
@@ -4,7 +4,6 @@
 import java.util.EnumMap;
 import java.util.List;
 import java.util.Map;
-
 import vendingmachine.RandomNumberGenerator;
 
 public class VendingMachine {
@@ -58,18 +57,22 @@ public Map<Coin, Integer> changes(InputAmount inputAmount) {
         Map<Coin, Integer> changes = new EnumMap<>(Coin.class);
         for (Coin coin : Coin.values()) {
             int count = coins.get(coin);
-            for (int i = 0; i < count; i++) {
-                if (inputAmount.getAmount() <= 0) {
-                    break;
-                }
-                inputAmount.decrease(coin.getAmount());
-                coins.replace(coin, coins.get(coin) - 1);
-                changes.put(coin, changes.getOrDefault(coin, 0) + 1);
-            }
+            repeatChangesForCount(count, inputAmount, changes, coin);
         }
         return changes;
     }
 
+    private void repeatChangesForCount(int count, InputAmount inputAmount, Map<Coin, Integer> changes, Coin coin) {
+        for (int i = 0; i < count; i++) {
+            if (inputAmount.getAmount() <= 0) {
+                return;
+            }
+            inputAmount.decrease(coin.getAmount());
+            coins.replace(coin, coins.get(coin) - 1);
+            changes.put(coin, changes.getOrDefault(coin, 0) + 1);
+        }
+    }
+
     public Map<Coin, Integer> getCoins() {
         return coins;
     }

From ded3b4460cda5a36c0f57602356f2375215dfcfd Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 18:48:24 +0900
Subject: [PATCH 30/44] =?UTF-8?q?feat(InputAmount,=20Controller):=20?=
 =?UTF-8?q?=ED=88=AC=EC=9E=85=20=EA=B8=88=EC=95=A1=20=EA=B2=80=EC=A6=9D=20?=
 =?UTF-8?q?=EA=B8=B0=EB=8A=A5=20=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../vendingmachine/controller/Controller.java | 26 ++++++++++++++-----
 .../vendingmachine/domain/InputAmount.java    | 10 +++++++
 2 files changed, 30 insertions(+), 6 deletions(-)

diff --git a/src/main/java/vendingmachine/controller/Controller.java b/src/main/java/vendingmachine/controller/Controller.java
index edea05234..13bd34c0c 100644
--- a/src/main/java/vendingmachine/controller/Controller.java
+++ b/src/main/java/vendingmachine/controller/Controller.java
@@ -3,7 +3,6 @@
 import java.util.List;
 import java.util.Map;
 import java.util.function.Supplier;
-
 import vendingmachine.domain.Coin;
 import vendingmachine.domain.InputAmount;
 import vendingmachine.domain.Product;
@@ -15,18 +14,36 @@
 public class Controller {
 
     public void run() {
-        VendingMachineAmount vendingMachineAmount = repeatReadForInvalid(this::createVendingMachineAmount);
         VendingMachine vendingMachine = new VendingMachine();
+        VendingMachineAmount vendingMachineAmount = repeatReadForInvalid(this::createVendingMachineAmount);
+        addCoinsToVendingMachine(vendingMachineAmount, vendingMachine);
+        addProductsToVendingMachine(vendingMachine);
+
+        InputAmount inputAmount = repeatReadForInvalid(this::createInputAmount);
+        repeatPurchaseProduct(vendingMachine, inputAmount);
+
+        Map<Coin, Integer> changes = vendingMachine.changes(inputAmount);
+        OutputView.printChanges(changes);
+    }
+
+    private void addCoinsToVendingMachine(VendingMachineAmount vendingMachineAmount, VendingMachine vendingMachine) {
         vendingMachine.addCoins(vendingMachineAmount.getVendingMachineAmount());
         OutputView.printCoinsOfVendingMachine(vendingMachine.getCoins());
+    }
 
+    private void addProductsToVendingMachine(VendingMachine vendingMachine) {
         List<String> inputProducts = InputView.readProducts();
         for (String inputProduct : inputProducts) {
             String[] split = inputProduct.split(",");
             vendingMachine.addProduct(repeatReadForInvalid(() -> this.createProduct(split)));
         }
+    }
+
+    private InputAmount createInputAmount() {
+        return new InputAmount(InputView.readInputAmount());
+    }
 
-        InputAmount inputAmount = new InputAmount(InputView.readInputAmount());
+    private void repeatPurchaseProduct(VendingMachine vendingMachine, InputAmount inputAmount) {
         while (true) {
             OutputView.printRemainingInputAmount(inputAmount.getAmount());
             if (vendingMachine.isAllPriceGreaterThan(inputAmount.getAmount()) || vendingMachine.isAllProductSoldOut()) {
@@ -35,9 +52,6 @@ public void run() {
             String productNameToPurchase = InputView.readProductNameToPurchase();
             vendingMachine.purchase(productNameToPurchase, inputAmount);
         }
-
-        Map<Coin, Integer> changes = vendingMachine.changes(inputAmount);
-        OutputView.printChanges(changes);
     }
 
     private Product createProduct(String[] split) {
diff --git a/src/main/java/vendingmachine/domain/InputAmount.java b/src/main/java/vendingmachine/domain/InputAmount.java
index 001bdeb56..c051fd3d4 100644
--- a/src/main/java/vendingmachine/domain/InputAmount.java
+++ b/src/main/java/vendingmachine/domain/InputAmount.java
@@ -5,9 +5,19 @@ public class InputAmount {
     private int amount;
 
     public InputAmount(int amount) {
+        validate(amount);
         this.amount = amount;
     }
 
+    private void validate(int amount) {
+        if (amount < 10) {
+            throw new IllegalArgumentException("[ERROR] 투입 금액은 10원 이상이어야 합니다.");
+        }
+        if (amount % 10 != 0) {
+            throw new IllegalArgumentException("[ERROR] 투입 금액은 10원 단위만 가능합니다.");
+        }
+    }
+
     public void decrease(int amount) {
         this.amount -= amount;
     }

From 6bcefd69fd63afe8952a0cbe26b9dce657af8b49 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 18:51:26 +0900
Subject: [PATCH 31/44] =?UTF-8?q?refactor(Controller):=20=EB=B0=98?=
 =?UTF-8?q?=EB=B3=B5=20=EC=A1=B0=EA=B1=B4=EB=AC=B8=EC=9D=98=20=EC=9D=98?=
 =?UTF-8?q?=EB=8F=84=EA=B0=80=20=EB=AA=85=ED=99=95=ED=95=98=EB=8F=84?=
 =?UTF-8?q?=EB=A1=9D=20=EC=88=98=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/vendingmachine/controller/Controller.java     | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/main/java/vendingmachine/controller/Controller.java b/src/main/java/vendingmachine/controller/Controller.java
index 13bd34c0c..686ad6935 100644
--- a/src/main/java/vendingmachine/controller/Controller.java
+++ b/src/main/java/vendingmachine/controller/Controller.java
@@ -44,16 +44,18 @@ private InputAmount createInputAmount() {
     }
 
     private void repeatPurchaseProduct(VendingMachine vendingMachine, InputAmount inputAmount) {
-        while (true) {
+        while (canPurchase(vendingMachine, inputAmount)) {
             OutputView.printRemainingInputAmount(inputAmount.getAmount());
-            if (vendingMachine.isAllPriceGreaterThan(inputAmount.getAmount()) || vendingMachine.isAllProductSoldOut()) {
-                break;
-            }
             String productNameToPurchase = InputView.readProductNameToPurchase();
             vendingMachine.purchase(productNameToPurchase, inputAmount);
         }
     }
 
+    private boolean canPurchase(VendingMachine vendingMachine, InputAmount inputAmount) {
+        return !vendingMachine.isAllPriceGreaterThan(inputAmount.getAmount())
+                && !vendingMachine.isAllProductSoldOut();
+    }
+
     private Product createProduct(String[] split) {
         return new Product(split[0], Integer.parseInt(split[1]), Integer.parseInt(split[2]));
     }

From b4d384b523f625a1895157b5e3fa7f77897a99a0 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 18:55:46 +0900
Subject: [PATCH 32/44] =?UTF-8?q?refactor(Converter,=20Controller,=20Input?=
 =?UTF-8?q?View):=20Converter=20=ED=81=B4=EB=9E=98=EC=8A=A4=EB=A5=BC=20?=
 =?UTF-8?q?=EC=82=AC=EC=9A=A9=ED=95=98=EC=97=AC=20=EC=A0=95=EC=88=98?=
 =?UTF-8?q?=EB=A1=9C=20=EB=B3=80=ED=99=98=ED=95=98=EB=8A=94=20=EC=BD=94?=
 =?UTF-8?q?=EB=93=9C=20=EC=A4=91=EB=B3=B5=20=EC=B5=9C=EC=86=8C=ED=99=94?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../vendingmachine/controller/Controller.java     |  3 ++-
 src/main/java/vendingmachine/utils/Converter.java | 15 +++++++++++++++
 src/main/java/vendingmachine/view/InputView.java  | 13 +++----------
 3 files changed, 20 insertions(+), 11 deletions(-)
 create mode 100644 src/main/java/vendingmachine/utils/Converter.java

diff --git a/src/main/java/vendingmachine/controller/Controller.java b/src/main/java/vendingmachine/controller/Controller.java
index 686ad6935..24d53df34 100644
--- a/src/main/java/vendingmachine/controller/Controller.java
+++ b/src/main/java/vendingmachine/controller/Controller.java
@@ -8,6 +8,7 @@
 import vendingmachine.domain.Product;
 import vendingmachine.domain.VendingMachine;
 import vendingmachine.domain.VendingMachineAmount;
+import vendingmachine.utils.Converter;
 import vendingmachine.view.InputView;
 import vendingmachine.view.OutputView;
 
@@ -57,7 +58,7 @@ private boolean canPurchase(VendingMachine vendingMachine, InputAmount inputAmou
     }
 
     private Product createProduct(String[] split) {
-        return new Product(split[0], Integer.parseInt(split[1]), Integer.parseInt(split[2]));
+        return new Product(split[0], Converter.convertToInt(split[1]), Converter.convertToInt(split[2]));
     }
 
     private VendingMachineAmount createVendingMachineAmount() {
diff --git a/src/main/java/vendingmachine/utils/Converter.java b/src/main/java/vendingmachine/utils/Converter.java
new file mode 100644
index 000000000..6b0bf10e7
--- /dev/null
+++ b/src/main/java/vendingmachine/utils/Converter.java
@@ -0,0 +1,15 @@
+package vendingmachine.utils;
+
+public class Converter {
+
+    private Converter() {
+    }
+
+    public static int convertToInt(String input) {
+        try {
+            return Integer.parseInt(input);
+        } catch (NumberFormatException e) {
+            throw new IllegalArgumentException("[ERROR] 숫자만 입력 가능합니다.");
+        }
+    }
+}
diff --git a/src/main/java/vendingmachine/view/InputView.java b/src/main/java/vendingmachine/view/InputView.java
index 35b723b36..027e2b48a 100644
--- a/src/main/java/vendingmachine/view/InputView.java
+++ b/src/main/java/vendingmachine/view/InputView.java
@@ -5,6 +5,7 @@
 import java.util.stream.Collectors;
 
 import camp.nextstep.edu.missionutils.Console;
+import vendingmachine.utils.Converter;
 
 public class InputView {
 
@@ -14,11 +15,7 @@ private InputView() {
     public static int readVendingMachineAmount() {
         System.out.println("자판기가 보유하고 있는 금액을 입력해 주세요.");
         String input = Console.readLine();
-        try {
-            return Integer.parseInt(input);
-        } catch (NumberFormatException e) {
-            throw new IllegalArgumentException("[ERROR] 숫자만 입력 가능합니다.");
-        }
+        return Converter.convertToInt(input);
     }
 
     public static List<String> readProducts() {
@@ -32,11 +29,7 @@ public static List<String> readProducts() {
     public static int readInputAmount() {
         System.out.println("투입 금액을 입력해 주세요.");
         String input = Console.readLine();
-        try {
-            return Integer.parseInt(input);
-        } catch (NumberFormatException e) {
-            throw new IllegalArgumentException("[ERROR] 숫자만 입력 가능합니다.");
-        }
+        return Converter.convertToInt(input);
     }
 
     public static String readProductNameToPurchase() {

From d73a5393ab277527f754d437b7822324e6790d22 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 18:56:25 +0900
Subject: [PATCH 33/44] =?UTF-8?q?chore(RandomNumberGenerator,=20VendingMac?=
 =?UTF-8?q?hine):=20RandomNumberGenerator=20=ED=81=B4=EB=9E=98=EC=8A=A4=20?=
 =?UTF-8?q?=ED=8C=A8=ED=82=A4=EC=A7=80=20=EC=9C=84=EC=B9=98=20=EB=B3=80?=
 =?UTF-8?q?=EA=B2=BD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/vendingmachine/domain/VendingMachine.java         | 2 +-
 .../java/vendingmachine/{ => utils}/RandomNumberGenerator.java  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
 rename src/main/java/vendingmachine/{ => utils}/RandomNumberGenerator.java (90%)

diff --git a/src/main/java/vendingmachine/domain/VendingMachine.java b/src/main/java/vendingmachine/domain/VendingMachine.java
index 7bc598778..d38d12379 100644
--- a/src/main/java/vendingmachine/domain/VendingMachine.java
+++ b/src/main/java/vendingmachine/domain/VendingMachine.java
@@ -4,7 +4,7 @@
 import java.util.EnumMap;
 import java.util.List;
 import java.util.Map;
-import vendingmachine.RandomNumberGenerator;
+import vendingmachine.utils.RandomNumberGenerator;
 
 public class VendingMachine {
 
diff --git a/src/main/java/vendingmachine/RandomNumberGenerator.java b/src/main/java/vendingmachine/utils/RandomNumberGenerator.java
similarity index 90%
rename from src/main/java/vendingmachine/RandomNumberGenerator.java
rename to src/main/java/vendingmachine/utils/RandomNumberGenerator.java
index 015a654c1..a30966930 100644
--- a/src/main/java/vendingmachine/RandomNumberGenerator.java
+++ b/src/main/java/vendingmachine/utils/RandomNumberGenerator.java
@@ -1,4 +1,4 @@
-package vendingmachine;
+package vendingmachine.utils;
 
 import java.util.List;
 

From 64bf97345af8e95c2900b24c9c8282eb0c6908c5 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 19:01:14 +0900
Subject: [PATCH 34/44] =?UTF-8?q?refactor(Constants,=20InputAmount):=20?=
 =?UTF-8?q?=EB=A7=A4=EC=A7=81=20=EB=A6=AC=ED=84=B0=EB=9F=B4=20=EC=83=81?=
 =?UTF-8?q?=EC=88=98=ED=99=94=20=EC=B2=98=EB=A6=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/vendingmachine/constants/Constants.java | 16 ++++++++++++++++
 .../java/vendingmachine/domain/InputAmount.java  | 15 +++++++++++----
 2 files changed, 27 insertions(+), 4 deletions(-)
 create mode 100644 src/main/java/vendingmachine/constants/Constants.java

diff --git a/src/main/java/vendingmachine/constants/Constants.java b/src/main/java/vendingmachine/constants/Constants.java
new file mode 100644
index 000000000..17f22e938
--- /dev/null
+++ b/src/main/java/vendingmachine/constants/Constants.java
@@ -0,0 +1,16 @@
+package vendingmachine.constants;
+
+public enum Constants {
+
+    ERROR_PREFIX("[ERROR]");
+
+    private final String value;
+
+    Constants(String value) {
+        this.value = value;
+    }
+
+    public String getValue() {
+        return value;
+    }
+}
diff --git a/src/main/java/vendingmachine/domain/InputAmount.java b/src/main/java/vendingmachine/domain/InputAmount.java
index c051fd3d4..4d2612797 100644
--- a/src/main/java/vendingmachine/domain/InputAmount.java
+++ b/src/main/java/vendingmachine/domain/InputAmount.java
@@ -1,7 +1,12 @@
 package vendingmachine.domain;
 
+import vendingmachine.constants.Constants;
+
 public class InputAmount {
 
+    private static final int MIN_INPUT_AMOUNT = 10;
+    private static final int INPUT_AMOUNT_UNIT = 10;
+
     private int amount;
 
     public InputAmount(int amount) {
@@ -10,11 +15,13 @@ public InputAmount(int amount) {
     }
 
     private void validate(int amount) {
-        if (amount < 10) {
-            throw new IllegalArgumentException("[ERROR] 투입 금액은 10원 이상이어야 합니다.");
+        if (amount < MIN_INPUT_AMOUNT) {
+            throw new IllegalArgumentException(
+                    String.format("%s 투입 금액은 %d원 이상이어야 합니다.", Constants.ERROR_PREFIX, MIN_INPUT_AMOUNT));
         }
-        if (amount % 10 != 0) {
-            throw new IllegalArgumentException("[ERROR] 투입 금액은 10원 단위만 가능합니다.");
+        if (amount % INPUT_AMOUNT_UNIT != 0) {
+            throw new IllegalArgumentException(
+                    String.format("%s 투입 금액은 %d원 단위만 가능합니다.", Constants.ERROR_PREFIX, INPUT_AMOUNT_UNIT));
         }
     }
 

From ddc1f52bdeafc1934a2b315cfcd185fdeb387149 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 19:03:40 +0900
Subject: [PATCH 35/44] =?UTF-8?q?refactor(Product):=20=EB=A7=A4=EC=A7=81?=
 =?UTF-8?q?=20=EB=84=98=EB=B2=84=20=EC=83=81=EC=88=98=ED=99=94?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/vendingmachine/domain/Product.java | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/src/main/java/vendingmachine/domain/Product.java b/src/main/java/vendingmachine/domain/Product.java
index 1d8fff1e2..a43542ad5 100644
--- a/src/main/java/vendingmachine/domain/Product.java
+++ b/src/main/java/vendingmachine/domain/Product.java
@@ -1,7 +1,12 @@
 package vendingmachine.domain;
 
+import vendingmachine.constants.Constants;
+
 public class Product {
 
+    private static final int MIN_PRICE = 100;
+    private static final int PRICE_UNIT = 10;
+
     private String name;
     private int price;
     private int quantity;
@@ -14,11 +19,13 @@ public Product(String name, int price, int quantity) {
     }
 
     private void validatePrice(int price) {
-        if (price < 100) {
-            throw new IllegalArgumentException("[ERROR] 상품 가격은 100원 이상이어야 합니다.");
+        if (price < MIN_PRICE) {
+            throw new IllegalArgumentException(
+                    String.format("%s 상품 가격은 %d원 이상이어야 합니다.", Constants.ERROR_PREFIX, MIN_PRICE));
         }
-        if (price % 10 != 0) {
-            throw new IllegalArgumentException("[ERROR] 상품 가격은 10원 단위만 가능합니다.");
+        if (price % PRICE_UNIT != 0) {
+            throw new IllegalArgumentException(
+                    String.format("%s 상품 가격은 %d원 단위만 가능합니다.", Constants.ERROR_PREFIX, PRICE_UNIT));
         }
     }
 

From 5e5171eb121d94b62bc56f0e267f4ff85a1769e9 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 19:11:01 +0900
Subject: [PATCH 36/44] =?UTF-8?q?refactor(VendingMachine,=20VendingMachine?=
 =?UTF-8?q?Amount,=20Controller):=20=EC=BA=A1=EC=8A=90=ED=99=94=EB=A5=BC?=
 =?UTF-8?q?=20=ED=86=B5=ED=95=B4=20=EC=9C=A0=EC=A7=80=EB=B3=B4=EC=88=98?=
 =?UTF-8?q?=EC=84=B1=20=ED=96=A5=EC=83=81?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../vendingmachine/controller/Controller.java |  2 +-
 .../vendingmachine/domain/VendingMachine.java |  8 ++---
 .../domain/VendingMachineAmount.java          | 30 +++++++++++++------
 3 files changed, 26 insertions(+), 14 deletions(-)

diff --git a/src/main/java/vendingmachine/controller/Controller.java b/src/main/java/vendingmachine/controller/Controller.java
index 24d53df34..7fe27d31b 100644
--- a/src/main/java/vendingmachine/controller/Controller.java
+++ b/src/main/java/vendingmachine/controller/Controller.java
@@ -28,7 +28,7 @@ public void run() {
     }
 
     private void addCoinsToVendingMachine(VendingMachineAmount vendingMachineAmount, VendingMachine vendingMachine) {
-        vendingMachine.addCoins(vendingMachineAmount.getVendingMachineAmount());
+        vendingMachine.addCoins(vendingMachineAmount);
         OutputView.printCoinsOfVendingMachine(vendingMachine.getCoins());
     }
 
diff --git a/src/main/java/vendingmachine/domain/VendingMachine.java b/src/main/java/vendingmachine/domain/VendingMachine.java
index d38d12379..afaa9d2da 100644
--- a/src/main/java/vendingmachine/domain/VendingMachine.java
+++ b/src/main/java/vendingmachine/domain/VendingMachine.java
@@ -18,15 +18,15 @@ public VendingMachine() {
         coins.put(Coin.COIN_10, 0);
     }
 
-    public void addCoins(int amount) {
-        while (amount > 0) {
+    public void addCoins(VendingMachineAmount vendingMachineAmount) {
+        while (vendingMachineAmount.isGreaterThanZero()) {
             int generatedNumber = RandomNumberGenerator.generate(Coin.getCoinAmounts());
-            if (generatedNumber > amount) {
+            if (vendingMachineAmount.isLessThan(generatedNumber)) {
                 continue;
             }
             Coin coin = Coin.from(generatedNumber);
             coins.put(coin, coins.get(coin) + 1);
-            amount -= generatedNumber;
+            vendingMachineAmount.decrease(generatedNumber);
         }
     }
 
diff --git a/src/main/java/vendingmachine/domain/VendingMachineAmount.java b/src/main/java/vendingmachine/domain/VendingMachineAmount.java
index 41460a27d..9ac1b1501 100644
--- a/src/main/java/vendingmachine/domain/VendingMachineAmount.java
+++ b/src/main/java/vendingmachine/domain/VendingMachineAmount.java
@@ -2,23 +2,35 @@
 
 public class VendingMachineAmount {
 
-    private int vendingMachineAmount;
+    private int amount;
 
-    public VendingMachineAmount(int vendingMachineAmount) {
-        validate(vendingMachineAmount);
-        this.vendingMachineAmount = vendingMachineAmount;
+    public VendingMachineAmount(int amount) {
+        validate(amount);
+        this.amount = amount;
     }
 
-    private void validate(int vendingMachineAmount) {
-        if (vendingMachineAmount < 10) {
+    private void validate(int amount) {
+        if (amount < 10) {
             throw new IllegalArgumentException("[ERROR] 자판기가 보유 금액은 10원 이상이어야 합니다.");
         }
-        if (vendingMachineAmount % 10 != 0) {
+        if (amount % 10 != 0) {
             throw new IllegalArgumentException("[ERROR] 자판기 보유 금액은 10원 단위만 가능합니다.");
         }
     }
 
-    public int getVendingMachineAmount() {
-        return vendingMachineAmount;
+    public boolean isGreaterThanZero() {
+        return amount > 0;
+    }
+
+    public boolean isLessThan(int amount) {
+        return this.amount < amount;
+    }
+
+    public void decrease(int amount) {
+        this.amount -= amount;
+    }
+
+    public int getAmount() {
+        return amount;
     }
 }

From 5a7ac570a1b0de6ead300a53aa4f5e596cf59fce Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 19:15:07 +0900
Subject: [PATCH 37/44] =?UTF-8?q?refactor(VendingMachineAmount):=20?=
 =?UTF-8?q?=EC=83=81=EC=88=98=ED=99=94=20=EB=B0=8F=20=EB=B6=88=ED=95=84?=
 =?UTF-8?q?=EC=9A=94=ED=95=9C=20=EB=A9=94=EC=84=9C=EB=93=9C=20=EC=A0=9C?=
 =?UTF-8?q?=EA=B1=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../domain/VendingMachineAmount.java          | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/src/main/java/vendingmachine/domain/VendingMachineAmount.java b/src/main/java/vendingmachine/domain/VendingMachineAmount.java
index 9ac1b1501..0c86e82af 100644
--- a/src/main/java/vendingmachine/domain/VendingMachineAmount.java
+++ b/src/main/java/vendingmachine/domain/VendingMachineAmount.java
@@ -1,7 +1,12 @@
 package vendingmachine.domain;
 
+import vendingmachine.constants.Constants;
+
 public class VendingMachineAmount {
 
+    private static final int MIN_AMOUNT = 10;
+    private static final int AMOUNT_UNIT = 10;
+
     private int amount;
 
     public VendingMachineAmount(int amount) {
@@ -10,11 +15,13 @@ public VendingMachineAmount(int amount) {
     }
 
     private void validate(int amount) {
-        if (amount < 10) {
-            throw new IllegalArgumentException("[ERROR] 자판기가 보유 금액은 10원 이상이어야 합니다.");
+        if (amount < MIN_AMOUNT) {
+            throw new IllegalArgumentException(
+                    String.format("%s 자판기가 보유 금액은 %d원 이상이어야 합니다.", Constants.ERROR_PREFIX, MIN_AMOUNT));
         }
-        if (amount % 10 != 0) {
-            throw new IllegalArgumentException("[ERROR] 자판기 보유 금액은 10원 단위만 가능합니다.");
+        if (amount % AMOUNT_UNIT != 0) {
+            throw new IllegalArgumentException(
+                    String.format("%s 자판기가 보유 금액은 %d원 단위만 가능합니다.", Constants.ERROR_PREFIX, MIN_AMOUNT));
         }
     }
 
@@ -29,8 +36,4 @@ public boolean isLessThan(int amount) {
     public void decrease(int amount) {
         this.amount -= amount;
     }
-
-    public int getAmount() {
-        return amount;
-    }
 }

From 6aca1dac488d651b1397e0990acbedcbe1569111 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 19:19:39 +0900
Subject: [PATCH 38/44] =?UTF-8?q?refactor:=20=EC=97=90=EB=9F=AC=20?=
 =?UTF-8?q?=EB=A9=94=EC=8B=9C=EC=A7=80=20=EC=88=98=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/vendingmachine/domain/InputAmount.java        | 6 ++++--
 src/main/java/vendingmachine/domain/Product.java            | 6 ++++--
 .../java/vendingmachine/domain/VendingMachineAmount.java    | 6 ++++--
 .../java/vendingmachine/utils/RandomNumberGenerator.java    | 3 +--
 src/main/java/vendingmachine/view/InputView.java            | 3 +--
 src/main/java/vendingmachine/view/OutputView.java           | 1 -
 6 files changed, 14 insertions(+), 11 deletions(-)

diff --git a/src/main/java/vendingmachine/domain/InputAmount.java b/src/main/java/vendingmachine/domain/InputAmount.java
index 4d2612797..de6efd699 100644
--- a/src/main/java/vendingmachine/domain/InputAmount.java
+++ b/src/main/java/vendingmachine/domain/InputAmount.java
@@ -17,11 +17,13 @@ public InputAmount(int amount) {
     private void validate(int amount) {
         if (amount < MIN_INPUT_AMOUNT) {
             throw new IllegalArgumentException(
-                    String.format("%s 투입 금액은 %d원 이상이어야 합니다.", Constants.ERROR_PREFIX, MIN_INPUT_AMOUNT));
+                    String.format("%s 투입 금액은 %d원 이상이어야 합니다.",
+                            Constants.ERROR_PREFIX.getValue(), MIN_INPUT_AMOUNT));
         }
         if (amount % INPUT_AMOUNT_UNIT != 0) {
             throw new IllegalArgumentException(
-                    String.format("%s 투입 금액은 %d원 단위만 가능합니다.", Constants.ERROR_PREFIX, INPUT_AMOUNT_UNIT));
+                    String.format("%s 투입 금액은 %d원 단위만 가능합니다.",
+                            Constants.ERROR_PREFIX.getValue(), INPUT_AMOUNT_UNIT));
         }
     }
 
diff --git a/src/main/java/vendingmachine/domain/Product.java b/src/main/java/vendingmachine/domain/Product.java
index a43542ad5..daba6f8cd 100644
--- a/src/main/java/vendingmachine/domain/Product.java
+++ b/src/main/java/vendingmachine/domain/Product.java
@@ -21,11 +21,13 @@ public Product(String name, int price, int quantity) {
     private void validatePrice(int price) {
         if (price < MIN_PRICE) {
             throw new IllegalArgumentException(
-                    String.format("%s 상품 가격은 %d원 이상이어야 합니다.", Constants.ERROR_PREFIX, MIN_PRICE));
+                    String.format("%s 상품 가격은 %d원 이상이어야 합니다.",
+                            Constants.ERROR_PREFIX.getValue(), MIN_PRICE));
         }
         if (price % PRICE_UNIT != 0) {
             throw new IllegalArgumentException(
-                    String.format("%s 상품 가격은 %d원 단위만 가능합니다.", Constants.ERROR_PREFIX, PRICE_UNIT));
+                    String.format("%s 상품 가격은 %d원 단위만 가능합니다.",
+                            Constants.ERROR_PREFIX.getValue(), PRICE_UNIT));
         }
     }
 
diff --git a/src/main/java/vendingmachine/domain/VendingMachineAmount.java b/src/main/java/vendingmachine/domain/VendingMachineAmount.java
index 0c86e82af..a579b0dd7 100644
--- a/src/main/java/vendingmachine/domain/VendingMachineAmount.java
+++ b/src/main/java/vendingmachine/domain/VendingMachineAmount.java
@@ -17,11 +17,13 @@ public VendingMachineAmount(int amount) {
     private void validate(int amount) {
         if (amount < MIN_AMOUNT) {
             throw new IllegalArgumentException(
-                    String.format("%s 자판기가 보유 금액은 %d원 이상이어야 합니다.", Constants.ERROR_PREFIX, MIN_AMOUNT));
+                    String.format("%s 자판기가 보유 금액은 %d원 이상이어야 합니다.",
+                            Constants.ERROR_PREFIX.getValue(), MIN_AMOUNT));
         }
         if (amount % AMOUNT_UNIT != 0) {
             throw new IllegalArgumentException(
-                    String.format("%s 자판기가 보유 금액은 %d원 단위만 가능합니다.", Constants.ERROR_PREFIX, MIN_AMOUNT));
+                    String.format("%s 자판기가 보유 금액은 %d원 단위만 가능합니다.",
+                            Constants.ERROR_PREFIX.getValue(), MIN_AMOUNT));
         }
     }
 
diff --git a/src/main/java/vendingmachine/utils/RandomNumberGenerator.java b/src/main/java/vendingmachine/utils/RandomNumberGenerator.java
index a30966930..1141d39bf 100644
--- a/src/main/java/vendingmachine/utils/RandomNumberGenerator.java
+++ b/src/main/java/vendingmachine/utils/RandomNumberGenerator.java
@@ -1,8 +1,7 @@
 package vendingmachine.utils;
 
-import java.util.List;
-
 import camp.nextstep.edu.missionutils.Randoms;
+import java.util.List;
 
 public class RandomNumberGenerator {
 
diff --git a/src/main/java/vendingmachine/view/InputView.java b/src/main/java/vendingmachine/view/InputView.java
index 027e2b48a..8e3b47a1b 100644
--- a/src/main/java/vendingmachine/view/InputView.java
+++ b/src/main/java/vendingmachine/view/InputView.java
@@ -1,10 +1,9 @@
 package vendingmachine.view;
 
+import camp.nextstep.edu.missionutils.Console;
 import java.util.Arrays;
 import java.util.List;
 import java.util.stream.Collectors;
-
-import camp.nextstep.edu.missionutils.Console;
 import vendingmachine.utils.Converter;
 
 public class InputView {
diff --git a/src/main/java/vendingmachine/view/OutputView.java b/src/main/java/vendingmachine/view/OutputView.java
index 00e226b90..9357e6cfe 100644
--- a/src/main/java/vendingmachine/view/OutputView.java
+++ b/src/main/java/vendingmachine/view/OutputView.java
@@ -1,7 +1,6 @@
 package vendingmachine.view;
 
 import java.util.Map;
-
 import vendingmachine.domain.Coin;
 
 public class OutputView {

From 169b66be3529930b749f6c9b43562d0618b35788 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 19:24:54 +0900
Subject: [PATCH 39/44] =?UTF-8?q?test(InputAmountTest):=20=EA=B2=80?=
 =?UTF-8?q?=EC=A6=9D=20=EA=B8=B0=EB=8A=A5=20=EB=8B=A8=EC=9C=84=20=ED=85=8C?=
 =?UTF-8?q?=EC=8A=A4=ED=8A=B8?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../domain/InputAmountTest.java               | 32 +++++++++++++++++++
 .../{ => domain}/VendingMachineTest.java      |  4 +--
 2 files changed, 34 insertions(+), 2 deletions(-)
 create mode 100644 src/test/java/vendingmachine/domain/InputAmountTest.java
 rename src/test/java/vendingmachine/{ => domain}/VendingMachineTest.java (96%)

diff --git a/src/test/java/vendingmachine/domain/InputAmountTest.java b/src/test/java/vendingmachine/domain/InputAmountTest.java
new file mode 100644
index 000000000..2e9dc47ad
--- /dev/null
+++ b/src/test/java/vendingmachine/domain/InputAmountTest.java
@@ -0,0 +1,32 @@
+package vendingmachine.domain;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import org.assertj.core.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import vendingmachine.constants.Constants;
+
+class InputAmountTest {
+
+    private static final int MIN_INPUT_AMOUNT = 10;
+    private static final int INPUT_AMOUNT_UNIT = 10;
+
+    @Test
+    void construct_Fail_ByAmountIsLessThanMinimum() {
+        // when, then
+        Assertions.assertThatThrownBy(() -> new InputAmount(1))
+                .isInstanceOf(IllegalArgumentException.class)
+                .hasMessageContaining(String.format("%s 투입 금액은 %d원 이상이어야 합니다.",
+                        Constants.ERROR_PREFIX.getValue(), MIN_INPUT_AMOUNT));
+    }
+
+    @Test
+    void construct_Fail_ByInvalidUnit() {
+        // when, then
+        Assertions.assertThatThrownBy(() -> new InputAmount(111))
+                .isInstanceOf(IllegalArgumentException.class)
+                .hasMessageContaining(String.format("%s 투입 금액은 %d원 단위만 가능합니다.",
+                        Constants.ERROR_PREFIX.getValue(), INPUT_AMOUNT_UNIT));
+    }
+}
diff --git a/src/test/java/vendingmachine/VendingMachineTest.java b/src/test/java/vendingmachine/domain/VendingMachineTest.java
similarity index 96%
rename from src/test/java/vendingmachine/VendingMachineTest.java
rename to src/test/java/vendingmachine/domain/VendingMachineTest.java
index faa5b0b4f..f3d7bc3ed 100644
--- a/src/test/java/vendingmachine/VendingMachineTest.java
+++ b/src/test/java/vendingmachine/domain/VendingMachineTest.java
@@ -1,4 +1,4 @@
-package vendingmachine;
+package vendingmachine.domain;
 
 import org.assertj.core.api.Assertions;
 import org.junit.jupiter.api.Test;
@@ -33,4 +33,4 @@ void isAllProductSoldOut_True() {
         // when, then
         Assertions.assertThat(vendingMachine.isAllProductSoldOut()).isTrue();
     }
-}
\ No newline at end of file
+}

From d42a7b47402d51fe953d7c3519fc7d7ae16b209d Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 19:30:38 +0900
Subject: [PATCH 40/44] =?UTF-8?q?test(ProductTest):=20=EC=83=81=ED=92=88?=
 =?UTF-8?q?=20=EA=B0=80=EA=B2=A9=20=EA=B2=80=EC=A6=9D=20=EA=B8=B0=EB=8A=A5?=
 =?UTF-8?q?=20=EC=98=88=EC=99=B8=20=EC=B2=98=EB=A6=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../vendingmachine/domain/ProductTest.java    | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 src/test/java/vendingmachine/domain/ProductTest.java

diff --git a/src/test/java/vendingmachine/domain/ProductTest.java b/src/test/java/vendingmachine/domain/ProductTest.java
new file mode 100644
index 000000000..8831f88e5
--- /dev/null
+++ b/src/test/java/vendingmachine/domain/ProductTest.java
@@ -0,0 +1,29 @@
+package vendingmachine.domain;
+
+import org.assertj.core.api.Assertions;
+import org.junit.jupiter.api.Test;
+import vendingmachine.constants.Constants;
+
+class ProductTest {
+
+    private static final int MIN_PRICE = 100;
+    private static final int PRICE_UNIT = 10;
+    
+    @Test
+    void construct_Fail_ByPriceIsLessThanMinimum() {
+        // when, then
+        Assertions.assertThatThrownBy(() -> new Product("콜라", 1, 10))
+                .isInstanceOf(IllegalArgumentException.class)
+                .hasMessageContaining(String.format("%s 상품 가격은 %d원 이상이어야 합니다.",
+                        Constants.ERROR_PREFIX.getValue(), MIN_PRICE));
+    }
+
+    @Test
+    void construct_Fail_ByInvalidPriceUnit() {
+        // when, then
+        Assertions.assertThatThrownBy(() -> new Product("콜라", 111, 10))
+                .isInstanceOf(IllegalArgumentException.class)
+                .hasMessageContaining(String.format("%s 상품 가격은 %d원 단위만 가능합니다.",
+                        Constants.ERROR_PREFIX.getValue(), PRICE_UNIT));
+    }
+}

From 7fad6817e20c2780d6022e4c7892b8850f8084be Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 19:33:47 +0900
Subject: [PATCH 41/44] =?UTF-8?q?style:=20=EB=B6=88=ED=95=84=EC=9A=94?=
 =?UTF-8?q?=ED=95=9C=20import=EB=AC=B8=20=EC=A0=9C=EA=B1=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/test/java/vendingmachine/domain/InputAmountTest.java    | 3 ---
 src/test/java/vendingmachine/domain/VendingMachineTest.java | 3 ---
 2 files changed, 6 deletions(-)

diff --git a/src/test/java/vendingmachine/domain/InputAmountTest.java b/src/test/java/vendingmachine/domain/InputAmountTest.java
index 2e9dc47ad..8dfab7a3f 100644
--- a/src/test/java/vendingmachine/domain/InputAmountTest.java
+++ b/src/test/java/vendingmachine/domain/InputAmountTest.java
@@ -1,10 +1,7 @@
 package vendingmachine.domain;
 
-import static org.junit.jupiter.api.Assertions.*;
-
 import org.assertj.core.api.Assertions;
 import org.junit.jupiter.api.Test;
-
 import vendingmachine.constants.Constants;
 
 class InputAmountTest {
diff --git a/src/test/java/vendingmachine/domain/VendingMachineTest.java b/src/test/java/vendingmachine/domain/VendingMachineTest.java
index f3d7bc3ed..16c398193 100644
--- a/src/test/java/vendingmachine/domain/VendingMachineTest.java
+++ b/src/test/java/vendingmachine/domain/VendingMachineTest.java
@@ -3,9 +3,6 @@
 import org.assertj.core.api.Assertions;
 import org.junit.jupiter.api.Test;
 
-import vendingmachine.domain.Product;
-import vendingmachine.domain.VendingMachine;
-
 class VendingMachineTest {
 
     @Test

From 45ec4bc8d55bfbc7acb50cf8c5d187d6a9db5e48 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 19:35:39 +0900
Subject: [PATCH 42/44] =?UTF-8?q?docs(README):=20=EA=B8=B0=EB=8A=A5=20?=
 =?UTF-8?q?=EB=AA=A9=EB=A1=9D=20=EC=B5=9C=EC=8B=A0=ED=99=94?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/docs/README.md b/docs/README.md
index 550199353..2371fd012 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -25,4 +25,5 @@
 
 ## 검증 내용
 - [x] 상품 가격은 100원부터 시작하며, 10원으로 나누어떨어져야 한다.
-- [x] 자판기 보유 금액은 10원부터 시작하며, 10원으로 나누어떨어져야 한다.
\ No newline at end of file
+- [x] 자판기 보유 금액은 10원부터 시작하며, 10원으로 나누어떨어져야 한다.
+- [x] 투입 금액은 10원부터 시작하며, 10원으로 나누어떨어져야 한다.
\ No newline at end of file

From 6059b553ef091593ba1921728a9eda0d675029e5 Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 19:52:17 +0900
Subject: [PATCH 43/44] =?UTF-8?q?feat(InputView,=20Controller):=20?=
 =?UTF-8?q?=EC=83=81=ED=92=88=20=EC=9E=85=EB=A0=A5=20=ED=98=95=EC=8B=9D=20?=
 =?UTF-8?q?=EA=B2=80=EC=A6=9D=20=EA=B8=B0=EB=8A=A5=20=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                                         |  3 ++-
 .../java/vendingmachine/controller/Controller.java     |  2 +-
 src/main/java/vendingmachine/view/InputView.java       | 10 ++++++++++
 3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/docs/README.md b/docs/README.md
index 2371fd012..c5d1f88fe 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -26,4 +26,5 @@
 ## 검증 내용
 - [x] 상품 가격은 100원부터 시작하며, 10원으로 나누어떨어져야 한다.
 - [x] 자판기 보유 금액은 10원부터 시작하며, 10원으로 나누어떨어져야 한다.
-- [x] 투입 금액은 10원부터 시작하며, 10원으로 나누어떨어져야 한다.
\ No newline at end of file
+- [x] 투입 금액은 10원부터 시작하며, 10원으로 나누어떨어져야 한다.
+- [x] 자판기에 추가할 상품의 상품명, 가격, 수량은 쉼표로, 개별 상품은 대괄호([])로 묶어 세미콜론(;)으로 구분해야 한다.
\ No newline at end of file
diff --git a/src/main/java/vendingmachine/controller/Controller.java b/src/main/java/vendingmachine/controller/Controller.java
index 7fe27d31b..8aa1c001f 100644
--- a/src/main/java/vendingmachine/controller/Controller.java
+++ b/src/main/java/vendingmachine/controller/Controller.java
@@ -33,7 +33,7 @@ private void addCoinsToVendingMachine(VendingMachineAmount vendingMachineAmount,
     }
 
     private void addProductsToVendingMachine(VendingMachine vendingMachine) {
-        List<String> inputProducts = InputView.readProducts();
+        List<String> inputProducts = repeatReadForInvalid(InputView::readProducts);
         for (String inputProduct : inputProducts) {
             String[] split = inputProduct.split(",");
             vendingMachine.addProduct(repeatReadForInvalid(() -> this.createProduct(split)));
diff --git a/src/main/java/vendingmachine/view/InputView.java b/src/main/java/vendingmachine/view/InputView.java
index 8e3b47a1b..560b2f8fb 100644
--- a/src/main/java/vendingmachine/view/InputView.java
+++ b/src/main/java/vendingmachine/view/InputView.java
@@ -3,11 +3,17 @@
 import camp.nextstep.edu.missionutils.Console;
 import java.util.Arrays;
 import java.util.List;
+import java.util.regex.Pattern;
 import java.util.stream.Collectors;
+
+import vendingmachine.constants.Constants;
 import vendingmachine.utils.Converter;
 
 public class InputView {
 
+    private static final Pattern PRODUCTS_REGEX =
+            Pattern.compile("^(\\[[가-힣a-zA-Z]+,\\d+,\\d+\\])(;\\[[가-힣a-zA-Z]+,\\d+,\\d+\\])*$");
+
     private InputView() {
     }
 
@@ -20,6 +26,10 @@ public static int readVendingMachineAmount() {
     public static List<String> readProducts() {
         System.out.println("상품명과 가격, 수량을 입력해 주세요.");
         String input = Console.readLine();
+        if (!PRODUCTS_REGEX.matcher(input).matches()) {
+            throw new IllegalArgumentException(
+                    String.format("%s 유효하지 않은 형식입니다.", Constants.ERROR_PREFIX.getValue()));
+        }
         return Arrays.stream(input.split(";"))
                 .map(product -> product.substring(1, product.length() - 1))
                 .collect(Collectors.toList());

From 28e084187b5ab9b639206a951b2f76185041b05a Mon Sep 17 00:00:00 2001
From: Hanjaemo <hjm2530@gmail.com>
Date: Wed, 22 Nov 2023 19:58:07 +0900
Subject: [PATCH 44/44] =?UTF-8?q?feat(Controller):=20=EC=98=88=EC=99=B8=20?=
 =?UTF-8?q?=EC=B2=98=EB=A6=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/vendingmachine/controller/Controller.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/vendingmachine/controller/Controller.java b/src/main/java/vendingmachine/controller/Controller.java
index 8aa1c001f..e466a13ec 100644
--- a/src/main/java/vendingmachine/controller/Controller.java
+++ b/src/main/java/vendingmachine/controller/Controller.java
@@ -47,7 +47,7 @@ private InputAmount createInputAmount() {
     private void repeatPurchaseProduct(VendingMachine vendingMachine, InputAmount inputAmount) {
         while (canPurchase(vendingMachine, inputAmount)) {
             OutputView.printRemainingInputAmount(inputAmount.getAmount());
-            String productNameToPurchase = InputView.readProductNameToPurchase();
+            String productNameToPurchase = repeatReadForInvalid(InputView::readProductNameToPurchase);
             vendingMachine.purchase(productNameToPurchase, inputAmount);
         }
     }