EdmondLascaris: Created page with "= Bank Account Class = Here’s another simple object-oriented programming (OOP) example to help students practice. This one involves creating a Bank Account class, which simulates the basic functionality of a bank account. Like the previous example, it's designed for easy expansion. # Simple Bank Account Class Example class BankAccount: def init(self, account_holder, balance=0): """Initialize the account holder's name a..."

2024-10-27T10:40:09Z

Created page with "= Bank Account Class = Here’s another simple object-oriented programming (OOP) example to help students practice. This one involves creating a Bank Account class, which simulates the basic functionality of a bank account. Like the previous example, it's designed for easy expansion. <syntaxhighlight lang="python"> # Simple Bank Account Class Example class BankAccount: def __init__(self, account_holder, balance=0): """Initialize the account holder's name a..."

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= Bank Account Class =
Here’s another simple object-oriented programming (OOP) example to help students practice. This one involves creating a Bank Account class, which simulates the basic functionality of a bank account. Like the previous example, it's designed for easy expansion.

<syntaxhighlight lang="python">
# Simple Bank Account Class Example

class BankAccount:
def __init__(self, account_holder, balance=0):
"""Initialize the account holder's name and balance."""
self.account_holder = account_holder # Account holder's name
self.balance = balance # Initialize with an optional balance (default is 0)

def deposit(self, amount):
"""Deposit money into the account."""
if amount > 0:
self.balance += amount
print(f"Deposited ${amount}. New balance: ${self.balance}.")
else:
print("Deposit amount must be positive!")

def withdraw(self, amount):
"""Withdraw money from the account."""
if amount > 0 and amount <= self.balance:
self.balance -= amount
print(f"Withdrew ${amount}. Remaining balance: ${self.balance}.")
elif amount > self.balance:
print("Insufficient funds!")
else:
print("Withdrawal amount must be positive!")

def display_balance(self):
"""Display the current balance."""
print(f"Account balance: ${self.balance}")

if __name__ == '__main__':
# Create an instance of the BankAccount class
my_account = BankAccount('John Doe', 100) # Initial deposit of $100

# Display the current balance
my_account.display_balance()

# Perform a deposit
my_account.deposit(50) # Deposit $50

# Perform a withdrawal
my_account.withdraw(30) # Withdraw $30

# Attempt to withdraw more than the balance
my_account.withdraw(150) # Insufficient funds example

# Display the final balance
my_account.display_balance()
</syntaxhighlight>

== Explanation of the Code ==
=== Class Definition: BankAccount ===
* The class is defined to simulate a simple bank account.
* The __init__ method initializes the account holder’s name and an optional balance (default is 0).

=== Methods: ===
* '''deposit(self, amount):''' Adds money to the account, ensuring the amount is positive.
* '''withdraw(self, amount):''' Withdraws money from the account, ensuring the amount does not exceed the balance.
* '''display_balance(self):''' Prints the current account balance.

=== Main Script: ===
* An instance of the BankAccount class is created with an initial deposit.
* The program demonstrates depositing and withdrawing money and checks for insufficient funds.
* It prints the balance after each transaction.

== Expanding the Program ==
Students can expand this example in several ways:

* Add Interest: Implement a method to apply interest to the account balance.
* Overdraft Protection: Add an overdraft limit and handle what happens when a withdrawal exceeds the overdraft limit.
* Multiple Accounts: Create a system to manage multiple bank accounts (e.g., savings and checking).
* Transaction History: Add a feature that tracks and prints all deposits and withdrawals.

This example builds upon the basics of OOP and encourages students to experiment with new features and functionalities.

Worksheet 9 - OOP Class BankAccount example - Revision history