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I'm now a banker! #91

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270 changes: 242 additions & 28 deletions lab-python-oop.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -56,39 +56,86 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 2,
"id": "21625526-3fae-4c55-bab5-f91940070681",
"metadata": {},
"outputs": [],
"source": [
"# your code goes here\n",
"class BankAccount:\n",
" _next_account_number = 1 # Class variable to ensure unique account numbers\n",
"\n",
" def __init__(self):\n",
" self._account_number = BankAccount._next_account_number\n",
" BankAccount._next_account_number += 1\n",
" self._balance = 0.0\n",
"\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(\"Insufficient balance for withdrawal.\")\n",
" else:\n",
" print(\"Withdrawal amount must be positive.\")\n",
"\n",
" def get_balance(self):\n",
" return self._balance\n",
"\n",
" def get_account_number(self):\n",
" return self._account_number\n",
"\n"
]
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 7,
"id": "ee789466-d4cf-4dd8-b742-6863d42c3e5c",
"metadata": {},
"outputs": [],
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Deposited $500.00 to Account #4\n",
"Withdrew $150.00 from Account #4\n",
"Account #4 Balance: $350.00\n",
"Deposited $1218.00 to Account #5\n",
"Withdrew $225.00 from Account #5\n",
"Withdrew $300.00 from Account #5\n",
"Account #5 Balance: $693.00\n",
"Deposited $50.00 to Account #6\n",
"Withdrew $25.00 from Account #6\n",
"Account #6 Balance: $25.00\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",
"\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",
"\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",
"\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"
"account1 = BankAccount()\n",
"account2 = BankAccount()\n",
"account3 = BankAccount()\n",
"\n",
"# Do some Transactions\n",
"account1.deposit(500)\n",
"account1.withdraw(150)\n",
"print(f\"Account #{account1.get_account_number()} Balance: ${account1.get_balance():.2f}\")\n",
"\n",
"account2.deposit(1218)\n",
"account2.withdraw(225) # Should give insufficient funds warning\n",
"account2.withdraw(300)\n",
"print(f\"Account #{account2.get_account_number()} Balance: ${account2.get_balance():.2f}\")\n",
"\n",
"account3.deposit(50)\n",
"account3.withdraw(25)\n",
"print(f\"Account #{account3.get_account_number()} Balance: ${account3.get_balance():.2f}\")"
]
},
{
Expand Down Expand Up @@ -117,12 +164,78 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 9,
"id": "4f8848b5-05d3-4259-9e24-914537926778",
"metadata": {},
"outputs": [],
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Deposited $56.00 to Account #1\n",
"Withdrew $28.00 from Account #1\n",
"Added interest of $8.28 to Account #1\n",
"Account #1 Final Balance: $836.28\n",
"Account #1 Interest Rate: 1.00%\n"
]
}
],
"source": [
"# your code goes here"
"class BankAccount:\n",
" _next_account_number = 1 # Class variable to ensure unique account numbers\n",
"\n",
" def __init__(self):\n",
" self._account_number = BankAccount._next_account_number\n",
" BankAccount._next_account_number += 1\n",
" self._balance = 0.0\n",
"\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(\"Insufficient balance for withdrawal.\")\n",
" else:\n",
" print(\"Withdrawal amount must be positive.\")\n",
"\n",
" def get_balance(self):\n",
" return self._balance\n",
"\n",
" def get_account_number(self):\n",
" return self._account_number\n",
"\n",
"# SavingsAccount inherits from BankAccount\n",
"class SavingsAccount(BankAccount):\n",
" def __init__(self, interest_rate=0.01, initial_balance=0.0):\n",
" super().__init__()\n",
" self._interest_rate = interest_rate\n",
" self._balance = initial_balance\n",
"\n",
" def add_interest(self):\n",
" interest = self._balance * self._interest_rate\n",
" self._balance += interest\n",
" print(f\"Added interest of ${interest:.2f} to Account #{self._account_number}\")\n",
"\n",
" def get_interest_rate(self):\n",
" return self._interest_rate\n",
"\n",
"# Test the SavingsAccount class\n",
"savings = SavingsAccount(interest_rate=0.03, initial_balance=800)\n",
"savings.deposit(56)\n",
"savings.withdraw(28)\n",
"savings._interest_rate = 0.01 # Use default rate before adding interest\n",
"savings.add_interest()\n",
"\n",
"print(f\"Account #{savings.get_account_number()} Final Balance: ${savings.get_balance():.2f}\")\n",
"print(f\"Account #{savings.get_account_number()} Interest Rate: {savings.get_interest_rate() * 100:.2f}%\")\n"
]
},
{
Expand Down Expand Up @@ -189,12 +302,113 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 10,
"id": "3c883c6e-3cb8-4043-92d3-12409668a28e",
"metadata": {},
"outputs": [],
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Deposited $100.00 to Account #1\n",
"Withdrew $50.00 from Account #1\n",
"Deducted $4.00 in transaction fees from Account #1\n",
"\n",
"Account #1 Balance: $846.00\n",
"Transaction Count: 0\n",
"\n",
"Deposited $200.00 to Account #1\n",
"Withdrew $75.00 from Account #1\n",
"Deducted $4.00 in transaction fees from Account #1\n",
"\n",
"Account #1 Balance: $967.00\n",
"Transaction Count: 0\n"
]
}
],
"source": [
"# your code goes here"
"class BankAccount:\n",
" _next_account_number = 1 # Class variable to ensure unique account numbers\n",
"\n",
" def __init__(self):\n",
" self._account_number = BankAccount._next_account_number\n",
" BankAccount._next_account_number += 1\n",
" self._balance = 0.0\n",
"\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(\"Insufficient balance for withdrawal.\")\n",
" else:\n",
" print(\"Withdrawal amount must be positive.\")\n",
"\n",
" def get_balance(self):\n",
" return self._balance\n",
"\n",
" def get_account_number(self):\n",
" return self._account_number\n",
"\n",
"\n",
"class CheckingAccount(BankAccount):\n",
" def __init__(self, transaction_fee=1.0, initial_balance=0.0):\n",
" super().__init__()\n",
" self._transaction_fee = transaction_fee\n",
" self._transaction_count = 0\n",
" self._balance = initial_balance\n",
"\n",
" def deposit(self, amount):\n",
" super().deposit(amount)\n",
" self._transaction_count += 1\n",
"\n",
" def withdraw(self, amount):\n",
" super().withdraw(amount)\n",
" self._transaction_count += 1\n",
"\n",
" def deduct_fees(self):\n",
" total_fees = self._transaction_fee * self._transaction_count\n",
" if total_fees <= self._balance:\n",
" self._balance -= total_fees\n",
" print(f\"Deducted ${total_fees:.2f} in transaction fees from Account #{self._account_number}\")\n",
" self._transaction_count = 0\n",
" else:\n",
" print(\"Sadly, your balance is too low for this transaction.\")\n",
"\n",
" def reset_transactions(self):\n",
" self._transaction_count = 0\n",
"\n",
" def get_transaction_count(self):\n",
" return self._transaction_count\n",
"\n",
"\n",
"# === Testing the CheckingAccount class ===\n",
"\n",
"account = CheckingAccount(transaction_fee=2.0, initial_balance=800)\n",
"\n",
"# First set of transactions\n",
"account.deposit(100)\n",
"account.withdraw(50)\n",
"account.deduct_fees()\n",
"print(f\"\\nAccount #{account.get_account_number()} Balance: ${account.get_balance():.2f}\")\n",
"print(f\"Transaction Count: {account.get_transaction_count()}\")\n",
"\n",
"print() # Empty line for clarity\n",
"\n",
"# Second set of transactions\n",
"account.deposit(200)\n",
"account.withdraw(75)\n",
"account.deduct_fees()\n",
"print(f\"\\nAccount #{account.get_account_number()} Balance: ${account.get_balance():.2f}\")\n",
"print(f\"Transaction Count: {account.get_transaction_count()}\")\n"
]
},
{
Expand Down Expand Up @@ -245,7 +459,7 @@
],
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"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"display_name": "base",
"language": "python",
"name": "python3"
},
Expand All @@ -259,7 +473,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.11.5"
}
},
"nbformat": 4,
Expand Down