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[FT-072025] Eppu Henriksson #93

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208 changes: 191 additions & 17 deletions lab-python-oop.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -56,21 +56,74 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 34,
"id": "21625526-3fae-4c55-bab5-f91940070681",
"metadata": {},
"outputs": [],
"source": [
"# your code goes here\n",
"\n"
"\n",
"class BankAccount:\n",
" \"\"\"\n",
" Creates a BankAccount class with the following attributes and methods:\n",
"\n",
" Attributes:\n",
" - account_number (a unique identifier for the bank account)\n",
" - balance (the current balance of the account. By default, is 0)\n",
" \n",
" Methods:\n",
" - deposit(amount) - adds the specified amount to the account balance\n",
" - withdraw(amount) - subtracts the specified amount from the account balance\n",
" - get_balance() - returns the current balance of the account\n",
" - get_account_number() - returns the account number of the account\n",
" \"\"\"\n",
" account_count = 0\n",
" def __init__(self, balance):\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 <= 0:\n",
" print(\"Withdrawal amount must be positive.\")\n",
" elif amount > self.balance:\n",
" print(\"Insufficient balance.\")\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"
]
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 35,
"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 +170,36 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 36,
"id": "4f8848b5-05d3-4259-9e24-914537926778",
"metadata": {},
"outputs": [],
"source": [
"# your code goes here"
"# your code goes here\n",
"\n",
"class SavingsAccount(BankAccount):\n",
" \"\"\"\n",
" Creates a SavingsAccount class that inherits from the BankAccount class. \n",
" The SavingsAccount class has the following additional attributes and methods:\n",
"\n",
" Attributes:\n",
" - interest_rate (the annual interest rate for the savings account. \n",
" By default - if no value is provided - sets it to 0.01)\n",
"\n",
" Methods:\n",
" - add_interest() - adds the interest earned to the account balance\n",
" - get_interest_rate() - returns the interest rate for the account\n",
" \"\"\" \n",
" def __init__(self, balance, 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"
]
},
{
Expand Down Expand Up @@ -151,12 +228,31 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 37,
"id": "bccc7f6d-d58c-4909-9314-aaf4afc1cd30",
"metadata": {},
"outputs": [],
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Account 3 balance after transactions: 125\n",
"Current balance: 127.5\n",
"Interest rate: 0.02\n"
]
}
],
"source": [
"# your code goes here"
"# your code goes here\n",
"account3 = SavingsAccount(100, 0.02)\n",
"\n",
"account3.deposit(50)\n",
"account3.withdraw(25)\n",
"print(\"Account 3 balance after transactions:\", account3.get_balance()) # This should print 125\n",
"\n",
"account3.add_interest()\n",
"print(\"Current balance: \", account3.get_balance())\n",
"print(\"Interest rate: \", account3.get_interest_rate())"
]
},
{
Expand Down Expand Up @@ -189,12 +285,58 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 44,
"id": "3c883c6e-3cb8-4043-92d3-12409668a28e",
"metadata": {},
"outputs": [],
"source": [
"# your code goes here"
"# your code goes here\n",
"class CheckingAccount(BankAccount):\n",
" \"\"\"\n",
" Creates a CheckingAccount class that inherits from the BankAccount class. \n",
" The CheckingAccount class has the following additional attributes and methods:\n",
"\n",
" Attributes:\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",
"\n",
" Methods:\n",
" - deduct_fees() - deducts transaction fees from the account balance based on the number of transactions \n",
" made in the current month and the transaction fee per transaction. The method calculates the total \n",
" fees by multiplying the transaction count with the transaction fee, and deducts the fees from the \n",
" account balance if it's sufficient. If the balance is insufficient, it prints an error message. \n",
" Otherwise, it prints how much it's been deducted. After deducting the fees, the method resets the \n",
" transaction count to 0.\n",
" - reset_transactions() - resets the transaction count to 0\n",
" - get_transaction_count() - returns the current transaction count for the account\n",
" \"\"\"\n",
" def __init__(self, balance, 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",
" 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 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",
" self.transaction_count = 0\n",
" else:\n",
" print(f\"Insufficient funds\")\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 @@ -234,20 +376,52 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 47,
"id": "faa5b148-c11b-4be0-b810-de8a7da81451",
"metadata": {},
"outputs": [],
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Account 4 balance after transactions: 550\n",
"Transaction fees of 4 have been deducted from your account balance.\n",
"Account 4 balance after transactions: 546\n",
"Transaction count: 0\n",
"Account 4 balance after transactions: 671\n",
"Transaction fees of 4 have been deducted from your account balance.\n",
"Account 4 balance after transactions: 667\n",
"Transaction count: 0\n"
]
}
],
"source": [
"# your code goes here"
"# your code goes here\n",
"account4 = CheckingAccount(500, 2)\n",
"\n",
"account4.deposit(100)\n",
"account4.withdraw(50)\n",
"print(\"Account 4 balance after transactions:\", account4.get_balance()) # This should print 550\n",
"\n",
"account4.deduct_fees()\n",
"print(\"Account 4 balance after transactions:\", account4.get_balance()) # This should print 546\n",
"print(\"Transaction count:\", account4.get_transaction_count())\n",
"\n",
"account4.deposit(200)\n",
"account4.withdraw(75)\n",
"print(\"Account 4 balance after transactions:\", account4.get_balance()) # This should print 671\n",
"\n",
"account4.deduct_fees()\n",
"print(\"Account 4 balance after transactions:\", account4.get_balance()) # This should print 667\n",
"print(\"Transaction count:\", account4.get_transaction_count())"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"display_name": "Python [conda env:base] *",
"language": "python",
"name": "python3"
"name": "conda-base-py"
},
"language_info": {
"codemirror_mode": {
Expand All @@ -259,7 +433,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.13.5"
}
},
"nbformat": 4,
Expand Down