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oop lab extra answers to lab-python-oop.ipynb #100

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278 changes: 258 additions & 20 deletions lab-python-oop.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -56,21 +56,85 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 3,
"id": "21625526-3fae-4c55-bab5-f91940070681",
"metadata": {},
"outputs": [],
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Account 1 Number: 1\n",
"Account 2 Number: 2\n",
"Account 1 Balance: 1000\n",
"Account 2 Balance: 500\n",
"Account 1 Balance: 800\n",
"Account 2 Balance: 400\n"
]
}
],
"source": [
"# your code goes here\n",
"\n"
"class BankAccount:\n",
" account_count = 0\n",
"\n",
" def __init__(self):\n",
" BankAccount.account_count += 1\n",
" self.account_number = BankAccount.account_count\n",
" self.balance = 0\n",
"\n",
" def deposit(self, amount):\n",
" self.balance += amount\n",
"\n",
" def withdraw(self, amount):\n",
" if amount > self.balance:\n",
" print(\"Insufficient funds\")\n",
" else:\n",
" self.balance -= amount\n",
"\n",
" def get_balance(self):\n",
" return self.balance\n",
"\n",
" def get_account_number(self):\n",
" return self.account_number\n",
"\n",
"# Test the class\n",
"account1 = BankAccount()\n",
"account2 = BankAccount()\n",
"\n",
"print(\"Account 1 Number:\", account1.get_account_number())\n",
"print(\"Account 2 Number:\", account2.get_account_number())\n",
"\n",
"account1.deposit(1000)\n",
"account2.deposit(500)\n",
"\n",
"print(\"Account 1 Balance:\", account1.get_balance())\n",
"print(\"Account 2 Balance:\", account2.get_balance())\n",
"\n",
"account1.withdraw(200)\n",
"account2.withdraw(100)\n",
"\n",
"print(\"Account 1 Balance:\", account1.get_balance())\n",
"print(\"Account 2 Balance:\", account2.get_balance())"
]
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 6,
"id": "ee789466-d4cf-4dd8-b742-6863d42c3e5c",
"metadata": {},
"outputs": [],
"outputs": [
{
"ename": "TypeError",
"evalue": "BankAccount.__init__() takes 1 positional argument but 2 were given",
"output_type": "error",
"traceback": [
"\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
"\u001b[1;31mTypeError\u001b[0m Traceback (most recent call last)",
"Cell \u001b[1;32mIn[6], line 3\u001b[0m\n\u001b[0;32m 1\u001b[0m \u001b[38;5;66;03m# Testing the BankAccount class\u001b[39;00m\n\u001b[0;32m 2\u001b[0m \u001b[38;5;66;03m# Creating two instances of the BankAccount class with initial balances of 1000 and 500\u001b[39;00m\n\u001b[1;32m----> 3\u001b[0m account1 \u001b[38;5;241m=\u001b[39m BankAccount(\u001b[38;5;241m1000\u001b[39m)\n\u001b[0;32m 4\u001b[0m account2 \u001b[38;5;241m=\u001b[39m BankAccount(\u001b[38;5;241m500\u001b[39m)\n\u001b[0;32m 6\u001b[0m \u001b[38;5;28mprint\u001b[39m(\u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mAccount 1 balance:\u001b[39m\u001b[38;5;124m\"\u001b[39m, account1\u001b[38;5;241m.\u001b[39mget_balance()) \u001b[38;5;66;03m# This should print 1000\u001b[39;00m\n",
"\u001b[1;31mTypeError\u001b[0m: BankAccount.__init__() takes 1 positional argument but 2 were given"
]
}
],
"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 +181,68 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 7,
"id": "4f8848b5-05d3-4259-9e24-914537926778",
"metadata": {},
"outputs": [],
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Account 1 Number: 3\n",
"Account 2 Number: 4\n",
"Account 1 Interest Rate: 0.01\n",
"Account 2 Interest Rate: 0.05\n",
"Account 1 Balance: 1000\n",
"Account 2 Balance: 500\n",
"Account 1 Balance after interest: 1010.0\n",
"Account 2 Balance after interest: 525.0\n",
"Account 1 Balance: 810.0\n",
"Account 2 Balance: 425.0\n"
]
}
],
"source": [
"# your code goes here"
"class SavingsAccount(BankAccount):\n",
" def __init__(self, interest_rate=0.01):\n",
" super().__init__()\n",
" self.interest_rate = interest_rate\n",
"\n",
" def add_interest(self):\n",
" interest = self.balance * self.interest_rate\n",
" self.balance += interest\n",
"\n",
" def get_interest_rate(self):\n",
" return self.interest_rate\n",
"\n",
"\n",
"# Test the class\n",
"account1 = SavingsAccount()\n",
"account2 = SavingsAccount(0.05)\n",
"\n",
"print(\"Account 1 Number:\", account1.get_account_number())\n",
"print(\"Account 2 Number:\", account2.get_account_number())\n",
"\n",
"print(\"Account 1 Interest Rate:\", account1.get_interest_rate())\n",
"print(\"Account 2 Interest Rate:\", account2.get_interest_rate())\n",
"\n",
"account1.deposit(1000)\n",
"account2.deposit(500)\n",
"\n",
"print(\"Account 1 Balance:\", account1.get_balance())\n",
"print(\"Account 2 Balance:\", account2.get_balance())\n",
"\n",
"account1.add_interest()\n",
"account2.add_interest()\n",
"\n",
"print(\"Account 1 Balance after interest:\", account1.get_balance())\n",
"print(\"Account 2 Balance after interest:\", account2.get_balance())\n",
"\n",
"account1.withdraw(200)\n",
"account2.withdraw(100)\n",
"\n",
"print(\"Account 1 Balance:\", account1.get_balance())\n",
"print(\"Account 2 Balance:\", account2.get_balance())"
]
},
{
Expand Down Expand Up @@ -151,12 +271,36 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 9,
"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",
"account = SavingsAccount(0.02)\n",
"account.deposit(100)\n",
"\n",
"# Deposit $50 into the savings account\n",
"account.deposit(50)\n",
"\n",
"# Withdraw $25 from the savings account\n",
"account.withdraw(25)\n",
"\n",
"# Add interest to the savings account (use the default 0.01)\n",
"account.add_interest()\n",
"\n",
"# Print the current balance and interest rate of the savings account\n",
"print(\"Current balance:\", account.get_balance())\n",
"print(\"Interest rate:\", account.get_interest_rate())"
]
},
{
Expand Down Expand Up @@ -189,12 +333,65 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 10,
"id": "3c883c6e-3cb8-4043-92d3-12409668a28e",
"metadata": {},
"outputs": [],
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Transaction count: 4\n",
"Deducted $4 in fees\n",
"Balance after deducting fees: 146\n",
"Transaction count after resetting: 0\n"
]
}
],
"source": [
"# your code goes here"
"class CheckingAccount(BankAccount):\n",
" def __init__(self, transaction_fee=1):\n",
" super().__init__()\n",
" self.transaction_fee = transaction_fee\n",
" self.transaction_count = 0\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_count * self.transaction_fee\n",
" if total_fees > self.balance:\n",
" print(\"Insufficient balance to deduct fees\")\n",
" else:\n",
" self.balance -= total_fees\n",
" print(f\"Deducted ${total_fees} in fees\")\n",
" self.transaction_count = 0\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",
"# Test the class\n",
"account = CheckingAccount()\n",
"\n",
"account.deposit(100)\n",
"account.withdraw(50)\n",
"account.deposit(200)\n",
"account.withdraw(100)\n",
"\n",
"print(\"Transaction count:\", account.get_transaction_count())\n",
"account.deduct_fees()\n",
"print(\"Balance after deducting fees:\", account.get_balance())\n",
"account.reset_transactions()\n",
"print(\"Transaction count after resetting:\", account.get_transaction_count())"
]
},
{
Expand Down Expand Up @@ -234,18 +431,59 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 11,
"id": "faa5b148-c11b-4be0-b810-de8a7da81451",
"metadata": {},
"outputs": [],
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Deducted $6 in fees\n",
"Current balance: 544\n",
"Transaction count: 0\n",
"Deducted $4 in fees\n",
"Current balance: 665\n",
"Transaction count: 0\n"
]
}
],
"source": [
"# your code goes here"
"# Create a new checking account with a balance of 500 dollars and a transaction fee of 2 dollars\n",
"account = CheckingAccount(transaction_fee=2)\n",
"account.deposit(500)\n",
"\n",
"# Deposit 100 dollars into the account\n",
"account.deposit(100)\n",
"\n",
"# Withdraw 50 dollars from the account\n",
"account.withdraw(50)\n",
"\n",
"# Deduct the transaction fees from the account\n",
"account.deduct_fees()\n",
"\n",
"# Get the current balance and transaction count\n",
"print(\"Current balance:\", account.get_balance())\n",
"print(\"Transaction count:\", account.get_transaction_count())\n",
"\n",
"# Deposit 200 dollars into the account\n",
"account.deposit(200)\n",
"\n",
"# Withdraw 75 dollars from the account\n",
"account.withdraw(75)\n",
"\n",
"# Deduct the transaction fees from the account\n",
"account.deduct_fees()\n",
"\n",
"# Get the current balance and transaction count again\n",
"print(\"Current balance:\", account.get_balance())\n",
"print(\"Transaction count:\", account.get_transaction_count())"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"display_name": "base",
"language": "python",
"name": "python3"
},
Expand All @@ -259,7 +497,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.13.5"
}
},
"nbformat": 4,
Expand Down