*OOP Mini Project — Bank Account System*

This project ties together everything you've learned in OOP so far:

- Classes & Objects
- Attributes and Methods
- Constructors (__init__)
- Custom behaviors

*Project: Simple Bank Account*

We’ll create a class that mimics a real-world bank account where you can:

- Deposit money
- Withdraw money
- Check your balance

*Step-by-step Code:*

class BankAccount:
def __init__(self, owner, balance=0):
self.owner = owner
self.balance = balance

def deposit(self, amount):
if amount 0:
self.balance += amount
print(fDeposited ₹amount. New balance: ₹self.balance)
else:
print(Deposit amount must be positive.)

def withdraw(self, amount):
if 0 amount = self.balance:
self.balance -= amount
print(fWithdrew ₹amount. New balance: ₹self.balance)
else:
print(Insufficient funds or invalid amount.)

def check_balance(self):
print(fself.owner, your balance is ₹self.balance)


*Using the Class*

account1 = BankAccount(Deepak, 1000)

account1.deposit(500) Deposited ₹500. New balance: ₹1500
account1.withdraw(200) Withdrew ₹200. New balance: ₹1300
account1.check_balance() Deepak, your balance is ₹1300

*What Did You Learn?*

- How to manage state using attributes
- How to define custom methods
- Basic validation logic inside class methods
- Using default arguments (balance=0)
- Real-world OOP design principles