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Solution lab-oop #39

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168 changes: 153 additions & 15 deletions lab-python-oop.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -56,21 +56,57 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 11,
"id": "21625526-3fae-4c55-bab5-f91940070681",
"metadata": {},
"outputs": [],
"source": [
"# your code goes here\n",
"class BankAccount: \n",
" account_counter = 0 # Class variable to keep track of account numbers\n",
" \n",
" def __init__(self, initial_balance):\n",
" self.balance = initial_balance\n",
" BankAccount.account_counter += 1 # Increment the counter for each new account\n",
" self.account_number = BankAccount.account_counter # Assign unique account number\n",
" \n",
" def get_balance(self):\n",
" return self.balance\n",
" \n",
" def get_account_number(self):\n",
" return self.account_number\n",
" \n",
" def deposit(self, amount):\n",
" self.balance += amount\n",
" return self.balance\n",
" \n",
" def withdraw(self, amount):\n",
" if amount > self.balance:\n",
" return \"insufficient balance\"\n",
" self.balance -= amount\n",
" return self.balance\n",
"\n",
"\n"
]
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 12,
"id": "ee789466-d4cf-4dd8-b742-6863d42c3e5c",
"metadata": {},
"outputs": [],
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Account 1 balance: 1000\n",
"Account 1 number: 1\n",
"Account 2 balance: 500\n",
"Account 2 number: 2\n",
"Account 1 balance after transactions: 1300\n",
"Account 2 balance after transactions: 500\n"
]
}
],
"source": [
"# Testing the BankAccount class\n",
"# Creating two instances of the BankAccount class with initial balances of 1000 and 500\n",
Expand Down Expand Up @@ -117,12 +153,30 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 18,
"id": "4f8848b5-05d3-4259-9e24-914537926778",
"metadata": {},
"outputs": [],
"source": [
"# your code goes here"
"\n",
"class SavingsAccount(BankAccount):\n",
" def __init__(self, initial_balance, interest_rate=0.01):\n",
" # Initialize the parent class (BankAccount)\n",
" super().__init__(initial_balance)\n",
" # Add the interest_rate attribute specific to SavingsAccount\n",
" self.interest_rate = interest_rate\n",
" \n",
" def add_interest(self):\n",
" # Add interest to the balance\n",
" interest_earned = self.balance * self.interest_rate\n",
" self.balance += interest_earned\n",
" return self.balance\n",
" \n",
" def get_interest_rate(self):\n",
" return self.interest_rate\n",
"\n",
"\n",
" "
]
},
{
Expand Down Expand Up @@ -151,12 +205,35 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 22,
"id": "bccc7f6d-d58c-4909-9314-aaf4afc1cd30",
"metadata": {},
"outputs": [],
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Current balance: 127.5\n",
"Interest rate: 0.02\n"
]
}
],
"source": [
"# your code goes here"
"# Create a SavingsAccount object with a balance of $100 and interest rate of 2%\n",
"savings = SavingsAccount(100, 0.02)\n",
"\n",
"# Deposit $50 into the savings account\n",
"savings.deposit(50)\n",
"\n",
"# Withdraw $25 from the savings account\n",
"savings.withdraw(25)\n",
"\n",
"# Add interest to the savings account (interest rate is already set to 0.02)\n",
"savings.add_interest()\n",
"\n",
"# Print the current balance and interest rate of the savings account\n",
"print(\"Current balance:\", savings.get_balance()) # Expected: 127.5\n",
"print(\"Interest rate:\", savings.get_interest_rate()) # Expected: 0.02"
]
},
{
Expand Down Expand Up @@ -189,12 +266,33 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 20,
"id": "3c883c6e-3cb8-4043-92d3-12409668a28e",
"metadata": {},
"outputs": [],
"source": [
"# your code goes here"
"# Create a CheckingAccount class that inherits from the BankAccount class. The CheckingAccount class should have the following additional attributes and methods:\n",
"\n",
"# Attributes:\n",
"\n",
"# transaction_fee (the fee charged per transaction. By default is 1$)\n",
"# transaction_count (the number of transactions made in the current month)\n",
"class CheckingAccount(BankAccount):\n",
" def __init__(self, initial_balance, transaction_fee=1):\n",
" # Initialize the parent class (BankAccount)\n",
" super().__init__(initial_balance)\n",
" # Add the transaction_fee attribute specific to CheckingAccount\n",
" self.transaction_fee = transaction_fee\n",
" # Initialize the transaction_count attribute to 0\n",
" self.transaction_count = 0\n",
" def deduct_fee(self):\n",
" self.balance -= self.transaction_fee\n",
" \n",
" def reset_transaction(self):\n",
" self.transaction_count = 0\n",
" \n",
" def get_transaction_count(self):\n",
" return self.transaction_count"
]
},
{
Expand Down Expand Up @@ -234,12 +332,52 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 26,
"id": "faa5b148-c11b-4be0-b810-de8a7da81451",
"metadata": {},
"outputs": [],
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Transaction fees of 2 have been deducted from your account balance.\n",
"Current balance: 546\n",
"Transaction count: 0\n",
"Transaction fees of 2 have been deducted from your account balance.\n",
"Current balance: 667\n",
"Transaction count: 0\n"
]
}
],
"source": [
"# your code goes here"
"checkAccount = CheckingAccount(500, 2)\n",
"\n",
"checkAccount.deduct_fee()\n",
"print(f'Transaction fees of {checkAccount.transaction_fee} have been deducted from your account balance.')\n",
"# Deposit 100 dollars into the account \n",
"checkAccount.deposit(100) \n",
"# Withdraw 50 dollars from the account\n",
"checkAccount.withdraw(50)\n",
"# Deduct the transaction fees from the account\n",
"checkAccount.deduct_fee()\n",
"# Reset the transaction count\n",
"checkAccount.reset_transaction()\n",
"# Get the current balance and transaction count\n",
"print(\"Current balance:\", checkAccount.get_balance())\n",
"print(\"Transaction count:\", checkAccount.get_transaction_count())\n",
"# Deposit 200 dollars into the account\n",
"checkAccount.deposit(200)\n",
"# Withdraw 75 dollars from the account\n",
"checkAccount.deduct_fee()\n",
"print(f'Transaction fees of {checkAccount.transaction_fee} have been deducted from your account balance.')\n",
"checkAccount.withdraw(75)\n",
"# Deduct the transaction fees from the account\n",
"checkAccount.deduct_fee()\n",
"# Reset the transaction count\n",
"checkAccount.reset_transaction()\n",
"# Get the current balance and transaction count\n",
"print(\"Current balance:\", checkAccount.get_balance())\n",
"print(\"Transaction count:\", checkAccount.get_transaction_count())\n"
]
}
],
Expand All @@ -259,7 +397,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.11.9"
}
},
"nbformat": 4,
Expand Down