Task 1 mihailov alex

src/main/java/ru/ifmo/cet/javabasics/BottleSong.java

@@ -1,43 +1,60 @@
 package ru.ifmo.cet.javabasics;
-
-/**
- * Нужно реализовать констурктор и метод, возвращающий слова песни про бутылки на стене.
- * <p>
- * Слова следующие:
- * <p>
- * 99 bottles of beer on the wall, 99 bottles of beer
- * Take one down, pass it around, 98 bottles of beer
- * 98 bottles of beer on the wall, 98 bottles of beer
- * Take one down, pass it around, 97 bottles of beer
- * 97 bottles of beer on the wall, 97 bottles of beer
- * Take one down, pass it around, 96 bottles of beer
- * 96 bottles of beer on the wall, 96 bottles of beer
- * Take one down, pass it around, 95 bottles of beer
- * 95 bottles of beer on the wall, 95 bottles of beer
- * ...
- * <p>
- * 3 bottles of beer on the wall, 3 bottles of beer
- * Take one down, pass it around, 2 bottles of beer
- * 2 bottles of beer on the wall, 2 bottles of beer
- * Take one down, pass it around, 1 bottles of beer
- * 1 bottle of beer on the wall, 1 bottle of beer
- * Take one down, pass it around, no more bottles of beer on the wall
- * No more bottles of beer on the wall, no more bottles of beer
- * Go to the store and buy some more, 99 bottles of beer on the wall
- * <p>
- * Дело усложняется тем, что текст песни переменный:
- * За раз может быть взято несколько бутылок.
- * Значение передается в качестве параметра конструктора
- * Нужно ограничить возможность взятия бутылок натуральным число не более 99 бутылок за раз.
- */
+import java.util.*;
 public class BottleSong {
-
+    public Map<Integer,String> dictionary;
+    private int take;
+    private int botle;
     public BottleSong(int bottleTakenAtOnce) {
-        //TODO
+        this.take=bottleTakenAtOnce;
+        this.botle=99;
+        this.dictionary=new HashMap<Integer, String>();
     }
-
     public String getBottleSongLyrics() {
-        //TODO
-        throw new UnsupportedOperationException();
+        if(this.take>99||this.take<1) throw new IllegalArgumentException();
+        if(this.take==99) return "99 bottles of beer on the wall, 99 bottles of beer.\n" +
+                "Take ninety nine down and pass around, no more bottles of beer on the wall.\n" +
+                "No more bottles of beer on the wall, no more bottles of beer.\n" +
+                "Go to the store and buy some more, 99 bottles of beer on the wall.\n";
+        String Lyrics="";
+        dictionary.put(1,"one");
+        dictionary.put(2,"two");
+        dictionary.put(3,"three");
+        dictionary.put(4, "four");
+        dictionary.put(5,"five");
+        dictionary.put(6,"six");
+        dictionary.put(7,"seven");
+        dictionary.put(8,"eight");
+        dictionary.put(9, "nine");
+        dictionary.put(10,"ten");
+        dictionary.put(11,"eleven");
+        dictionary.put(12,"twelve");
+        dictionary.put(13,"thirteen");
+        dictionary.put(14,"fourteen");
+        dictionary.put(15,"fifteen");
+        dictionary.put(16,"sixteen");
+        dictionary.put(17,"seventeen");
+        dictionary.put(18,"eighteen");
+        dictionary.put(19,"nineteen");
+        dictionary.put(20,"twenty");
+        dictionary.put(30,"thirty");
+        dictionary.put(40,"forty");
+        dictionary.put(50,"fifty");
+        dictionary.put(60,"sixty");
+        dictionary.put(70,"seventy");
+        dictionary.put(80,"eighty");
+        dictionary.put(90,"ninety");
+        while (this.take < this.botle) {
+            if(this.botle-this.take==1)  Lyrics+=this.botle + " bottles of beer on the wall, " + this.botle + " bottles of beer.\n" + "Take " + number(this.take) + " down and pass around, " + (this.botle = this.botle - this.take) + " bottle of beer on the wall.\n";
+            else Lyrics+=this.botle + " bottles of beer on the wall, " + this.botle + " bottles of beer.\n" + "Take " + number(this.take) + " down and pass around, " + (this.botle = this.botle - this.take) + " bottles of beer on the wall.\n";
+        }
+        if(this.botle==1){Lyrics+="1 bottle of beer on the wall, 1 bottle of beer.\n"+"Take one down and pass around, no more bottles of beer on the wall.\n"; this.botle=0;}
+        if(this.botle==0){return Lyrics+"No more bottles of beer on the wall, no more bottles of beer.\n" +
+                "Go to the store and buy some more, 99 bottles of beer on the wall.\n";}
+        return Lyrics + this.botle + " bottles of beer on the wall, " + this.botle + " bottles of beer.\n" + "Take " + number(this.botle) + " down and pass around, no more bottles of beer on the wall.\n"+"No more bottles of beer on the wall, no more bottles of beer.\n" +
+                "Go to the store and buy some more, 99 bottles of beer on the wall.\n";
     }
-}
+    private String number(int number){
+        if (number<=20||number%10==0) return this.dictionary.get(number);
+        else return this.dictionary.get(number-number%10)+" "+this.dictionary.get(number%10);
+    }
+}