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242 changes: 218 additions & 24 deletions lab-python-oop.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -56,39 +56,99 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 1,
"id": "21625526-3fae-4c55-bab5-f91940070681",
"metadata": {},
"outputs": [],
"source": [
"# your code goes here\n",
"\n"
"# Create a BankAccount class with attributes and methods\n",
"\n",
"class BankAccount:\n",
" \n",
" # Class attribute to keep track of tot number of accounts\n",
" account_count = 0 \n",
" def __init__(self, initial_balance=0):\n",
" BankAccount.account_count += 1\n",
" # Assign a unique account number based on the account count\n",
" self.account_number = BankAccount.account_count\n",
" # Balance is another class attribute; here the initial balance is set\n",
" self.balance = initial_balance\n",
" \n",
" # Add the specified amount to the account balance\n",
" def deposit(self, amount):\n",
" if amount > 0:\n",
" self.balance += amount\n",
" return True\n",
" else:\n",
" print(\"Deposit should be positive\")\n",
"\n",
" # Subtracts the specified amount from the account balance\n",
" def deposit(self, amount):\n",
" if amount > 0:\n",
" self.balance += amount\n",
" print(f\"Deposited ${amount:.2f} to account {self.account_number}\")\n",
" else:\n",
" print(\"Deposit amount must be positive\")\n",
"\n",
" def withdraw(self, amount):\n",
" if amount > 0:\n",
" if amount <= self.balance:\n",
" self.balance -= amount\n",
" print(f\"Withdrew ${amount:.2f} from account {self.account_number}\")\n",
" else:\n",
" print(\"The balance insufficient\")\n",
" else:\n",
" print(\"Withdrawal amount must be positive\")\n",
"\n",
" # Returns the current balance of the account\n",
" def get_balance(self):\n",
" return self.balance\n",
" \n",
" # Returns the account number\n",
" def get_account_number(self):\n",
" return self.account_number"
]
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 14,
"id": "ee789466-d4cf-4dd8-b742-6863d42c3e5c",
"metadata": {},
"outputs": [],
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Account 1 balance: 1000\n",
"Account 1 number: 14\n",
"Account 2 balance: 500\n",
"Account 2 number: 15\n",
"Deposited $300.00 to account 14\n",
"Withdrew $200.00 from account 14\n",
"Account 1 balance after transactions: $ 1100\n",
"The balance insufficient\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",
"account1 = BankAccount(1000)\n",
"account2 = BankAccount(500)\n",
"\n",
"print(\"Account 1 balance:\", account1.get_balance()) # This should print 1000\n",
"print(\"Account 1 number:\", account1.get_account_number()) # This should print 1\n",
"print(\"Account 1 balance:\", account1.get_balance()) # this prints 1000\n",
"print(\"Account 1 number:\", account1.get_account_number()) # this prints 1\n",
"\n",
"print(\"Account 2 balance:\", account2.get_balance()) #This should print 500\n",
"print(\"Account 2 number:\", account2.get_account_number()) #This should print 2\n",
"print(\"Account 2 balance:\", account2.get_balance()) # this prints 500\n",
"print(\"Account 2 number:\", account2.get_account_number()) # this prints 2\n",
"\n",
"account1.deposit(500) # We depoist 500 in the first account\n",
"account1.withdraw(200) # We withdraw 200 in the first account\n",
"print(\"Account 1 balance after transactions:\", account1.get_balance()) # This should print 1300\n",
"account1.deposit(300) # depoist 300 in the first account\n",
"account1.withdraw(200) # withdraw 200 in the first account\n",
"print(\"Account 1 balance after transactions: $\", account1.get_balance()) # this prints 1100\n",
"\n",
"account2.withdraw(600) # We withdraw 600 in the 2nd account \n",
"print(\"Account 2 balance after transactions:\", account2.get_balance())# This should print insufficient balance, and still 500 in funds"
"account2.withdraw(600) # withdraw 600 in the 2nd account \n",
"print(\"Account 2 balance after transactions: $\", account2.get_balance()) # this prints insufficient balance, and still 500 in funds"
]
},
{
Expand Down Expand Up @@ -122,7 +182,29 @@
"metadata": {},
"outputs": [],
"source": [
"# your code goes here"
"# Create a SavingsAccount class that inherits from the BankAccount class,\n",
"# and has the following additional attributes and methods:\n",
"\n",
"class SavingsAccount(BankAccount):\n",
"\n",
" # Define class attribute interest_rate (sets it to 0.01)\n",
" def __init__(self, initial_balance=0, interest_rate=0.01):\n",
" # Call the parent class constructor\n",
" super().__init__(initial_balance)\n",
" # Set interest rate\n",
" self.interest_rate = interest_rate\n",
"\n",
" # Define class methods: one method is used to add the interest earned to the account balance\n",
" def add_interest(self):\n",
" # Calculate interest\n",
" interest = self.balance * self.interest_rate\n",
" self.balance += interest\n",
" print(f\"Added ${interest:.2f} interest to account {self.account_number}\")\n",
"\n",
" # This method returns the interest rate for the account\n",
" def get_interest_rate(self):\n",
" return self.interest_rate\n",
"\n"
]
},
{
Expand Down Expand Up @@ -151,12 +233,46 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 12,
"id": "bccc7f6d-d58c-4909-9314-aaf4afc1cd30",
"metadata": {},
"outputs": [],
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Deposited $50.00 to account 13\n",
"Withdrew $25.00 from account 13\n",
"Added €2.50 interest to account 13\n",
"Balance: 127.5\n",
"Interest: 2.0%\n"
]
}
],
"source": [
"# your code goes here"
"# Test the SavingsAccount class by:\n",
"# creating a few instances of SavingsAccount,\n",
"# and making deposits and withdrawals,\n",
"# as well as adding interest.\n",
"\n",
"# Create SavingsAccount instances\n",
"savings_test = SavingsAccount(100, interest_rate=0.02) # 2% interest\n",
"\n",
"# Make deposits\n",
"savings_test.deposit(50)\n",
"\n",
"# Make withdraw\n",
"savings_test.withdraw(25)\n",
"\n",
"# Add interest\n",
"savings_test.add_interest()\n",
"\n",
"# Check balances\n",
"print(f\"Balance: {savings_test.get_balance():.1f}\")\n",
"\n",
"\n",
"# Check interest rates\n",
"print(f\"Interest: {savings_test.get_interest_rate()*100:.1f}%\")"
]
},
{
Expand Down Expand Up @@ -189,12 +305,49 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 13,
"id": "3c883c6e-3cb8-4043-92d3-12409668a28e",
"metadata": {},
"outputs": [],
"source": [
"# your code goes here"
"# Create a CheckingAccount class with attributes and methods\n",
"\n",
"class CheckingAccount(BankAccount):\n",
"\n",
" # Define attributes\n",
" def __init__(self, initial_balance=0, transaction_fee=1.0):\n",
" super().__init__(initial_balance)\n",
" self.transaction_fee = transaction_fee\n",
" self.transaction_count = 0\n",
"\n",
" # Override deposit to count transactions\n",
" def deposit(self, amount):\n",
" super().deposit(amount)\n",
" self.transaction_count += 1\n",
"\n",
" # Override withdraw to count transactions\n",
" def withdraw(self, amount):\n",
" super().withdraw(amount)\n",
" self.transaction_count += 1\n",
"\n",
" # Deduct fees based on transaction count\n",
" def deduct_fees(self):\n",
" total_fee = self.transaction_count * self.transaction_fee\n",
" if self.balance >= total_fee:\n",
" self.balance -= total_fee\n",
" print(f\"Deducted ${total_fee:.2f} in transaction fees from account {self.account_number}.\")\n",
" else:\n",
" print(f\"Insufficient balance to deduct ${total_fee:.2f} in transaction fees.\")\n",
" # Reset transaction count after deduction\n",
" self.reset_transactions()\n",
"\n",
" # Reset transaction count\n",
" def reset_transactions(self):\n",
" self.transaction_count = 0\n",
"\n",
" # Get transaction count\n",
" def get_transaction_count(self):\n",
" return self.transaction_count\n"
]
},
{
Expand Down Expand Up @@ -237,15 +390,56 @@
"execution_count": null,
"id": "faa5b148-c11b-4be0-b810-de8a7da81451",
"metadata": {},
"outputs": [],
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Deposited $100.00 to account 16\n",
"Withdrew $50.00 from account 16\n",
"Deducted $4.00 in transaction fees from account 16.\n",
"Balance after first fees deduction: $546.00\n",
"Transaction count after first deduction: 0\n",
"Deposited $200.00 to account 16\n",
"Withdrew $75.00 from account 16\n",
"Deducted $4.00 in transaction fees from account 16.\n",
"Balance after second fees deduction: $667.00\n",
"Transaction count after second deduction: 0\n"
]
}
],
"source": [
"# your code goes here"
"# Create a Testing CheckingAccount with $500 initial balance and $2 transaction fee\n",
"checking_test = CheckingAccount(initial_balance=500, transaction_fee=2)\n",
"\n",
"# Make some deposits and withdrawals\n",
"checking_test.deposit(100) # transaction_count = 1\n",
"checking_test.withdraw(50) # transaction_count = 2\n",
"\n",
"# Deduct the transaction fees from the account\n",
"checking_test.deduct_fees()\n",
"\n",
"\n",
"# Get current balance and transaction count\n",
"print(f\"Balance after first fees deduction: ${checking_test.get_balance():.2f}\")\n",
"print(f\"Transaction count after first deduction: {checking_test.get_transaction_count()}\")\n",
"\n",
"# Second set of transactions\n",
"checking_test.deposit(200) # transaction_count = 1\n",
"checking_test.withdraw(75) # transaction_count = 2\n",
"\n",
"# Deduct transaction fees\n",
"checking_test.deduct_fees() # 2 transactions × $2 = $4 deducted\n",
"\n",
"# Get current balance and transaction count\n",
"print(f\"Balance after second fees deduction: ${checking_test.get_balance():.2f}\")\n",
"print(f\"Transaction count after second deduction: {checking_test.get_transaction_count()}\")"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"display_name": "Python 3",
"language": "python",
"name": "python3"
},
Expand All @@ -259,7 +453,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.12.9"
}
},
"nbformat": 4,
Expand Down