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Solved lab #94

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180 changes: 164 additions & 16 deletions lab-python-oop.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -56,21 +56,63 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 1,
"id": "21625526-3fae-4c55-bab5-f91940070681",
"metadata": {},
"outputs": [],
"source": [
"# your code goes here\n",
"class BankAccount:\n",
" account_count = 0 # Class attribute to keep track of number of accounts\n",
"\n",
" def __init__(self, balance=0):\n",
" BankAccount.account_count += 1\n",
" self.account_number = BankAccount.account_count\n",
" self.balance = balance\n",
"\n",
" def deposit(self, amount):\n",
" if amount > 0:\n",
" self.balance += amount\n",
" else:\n",
" print(\"Deposit amount must be positive.\")\n",
"\n",
" def withdraw(self, amount):\n",
" if amount > self.balance:\n",
" print(\"Insufficient balance.\")\n",
" elif amount <= 0:\n",
" print(\"Withdrawal amount must be positive.\")\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",
"\n",
"\n"
]
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 2,
"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",
"Insufficient balance.\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 +159,23 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 3,
"id": "4f8848b5-05d3-4259-9e24-914537926778",
"metadata": {},
"outputs": [],
"source": [
"# your code goes here"
"class SavingsAccount(BankAccount):\n",
" def __init__(self, balance=0, interest_rate=0.01):\n",
" super().__init__(balance)\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"
]
},
{
Expand Down Expand Up @@ -151,12 +204,36 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 4,
"id": "bccc7f6d-d58c-4909-9314-aaf4afc1cd30",
"metadata": {},
"outputs": [],
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Current balance: 126.25\n",
"Interest rate: 0.01\n"
]
}
],
"source": [
"# your code goes here"
"# Create a SavingsAccount object with a balance of $100 and interest rate of 2%\n",
"savings = SavingsAccount(balance=100, interest_rate=0.02)\n",
"\n",
"# Deposit $50\n",
"savings.deposit(50)\n",
"\n",
"# Withdraw $25\n",
"savings.withdraw(25)\n",
"\n",
"# Add interest (using the default 0.01)\n",
"savings.interest_rate = 0.01 # Set interest rate to default for this step\n",
"savings.add_interest()\n",
"\n",
"# Print the current balance and interest rate\n",
"print(\"Current balance:\", savings.get_balance())\n",
"print(\"Interest rate:\", savings.get_interest_rate())"
]
},
{
Expand Down Expand Up @@ -189,12 +266,43 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 5,
"id": "3c883c6e-3cb8-4043-92d3-12409668a28e",
"metadata": {},
"outputs": [],
"source": [
"# your code goes here"
"class CheckingAccount(BankAccount):\n",
" def __init__(self, balance=0, transaction_fee=1):\n",
" super().__init__(balance)\n",
" self.transaction_fee = transaction_fee\n",
" self.transaction_count = 0\n",
"\n",
" def deposit(self, amount):\n",
" super().deposit(amount)\n",
" if amount > 0:\n",
" self.transaction_count += 1\n",
"\n",
" def withdraw(self, amount):\n",
" prev_balance = self.balance\n",
" super().withdraw(amount)\n",
" # Only count as a transaction if withdrawal was successful\n",
" if amount > 0 and amount <= prev_balance:\n",
" self.transaction_count += 1\n",
"\n",
" def deduct_fees(self):\n",
" total_fees = self.transaction_count * self.transaction_fee\n",
" if self.balance >= total_fees:\n",
" self.balance -= total_fees\n",
" print(f\"Transaction fees of {total_fees}$ have been deducted from your account balance.\")\n",
" else:\n",
" print(\"Insufficient balance to deduct transaction fees.\")\n",
" self.reset_transactions()\n",
"\n",
" def reset_transactions(self):\n",
" self.transaction_count = 0\n",
"\n",
" def get_transaction_count(self):\n",
" return self.transaction_count"
]
},
{
Expand Down Expand Up @@ -234,18 +342,58 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 6,
"id": "faa5b148-c11b-4be0-b810-de8a7da81451",
"metadata": {},
"outputs": [],
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Transaction fees of 4$ have been deducted from your account balance.\n",
"Current balance: 546\n",
"Transaction count: 0\n",
"Transaction fees of 4$ have been deducted from your account balance.\n",
"Current balance: 667\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",
"checking = CheckingAccount(balance=500, transaction_fee=2)\n",
"\n",
"# Deposit 100 dollars into the account\n",
"checking.deposit(100)\n",
"\n",
"# Withdraw 50 dollars from the account\n",
"checking.withdraw(50)\n",
"\n",
"# Deduct the transaction fees from the account\n",
"checking.deduct_fees()\n",
"\n",
"# Get the current balance and transaction count\n",
"print(\"Current balance:\", checking.get_balance())\n",
"print(\"Transaction count:\", checking.get_transaction_count())\n",
"\n",
"# Deposit 200 dollars into the account\n",
"checking.deposit(200)\n",
"\n",
"# Withdraw 75 dollars from the account\n",
"checking.withdraw(75)\n",
"\n",
"# Deduct the transaction fees from the account\n",
"checking.deduct_fees()\n",
"\n",
"# Get the current balance and transaction count again\n",
"print(\"Current balance:\", checking.get_balance())\n",
"print(\"Transaction count:\", checking.get_transaction_count())"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"display_name": "Python 3",
"language": "python",
"name": "python3"
},
Expand All @@ -259,7 +407,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.9.6"
}
},
"nbformat": 4,
Expand Down