1. What is OOP?

OOP stands for Object-Oriented Programming.

It is a way of designing and writing programs by organizing the program around objects.

Remember what we just learned:

• A class is a blueprint.
• An object is an actual instance created from that class.

In OOP, instead of thinking only about functions and data separately, we try to keep data and the operations that work on that data together inside objects.

For example, imagine a banking application.

You might have a BankAccount class containing information such as:

• account number
• account holder
• balance

And it can have operations such as:

• deposit
• withdraw
• checkBalance

So instead of having random variables and functions spread throughout the program, we organize them around a meaningful entity: BankAccount.

2. Why OOP?