What is OOP?
OOP Using Cpp B.Tech Notes pdf: Object-Oriented Programming (OOP) is a programming style that organizes your code into “objects” that have both data and functions. Think of it like organizing a big project into smaller, manageable parts. Each part (or object) can handle its own data and tasks.
Core Concepts of OOP
Classes and Objects:
Class: A blueprint for creating objects. It defines the data (attributes) and functions (methods) that the objects created from the class will have.
Object: An instance of a class. Once you have a class, you can create objects from it. For example, if you have a class Car, then myCar could be an object of that class.
Encapsulation:
Encapsulation means keeping the details of an object hidden from the outside world and only exposing what is necessary. This helps in protecting the data and hiding the implementation details.
Inheritance: OOP Using Cpp B.Tech Notes pdf
Inheritance allows a class to use properties and methods of another class. This helps in reusing code. For example, you could have a base class Vehicle and derive a Car class from it.
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Polymorphism: OOP Using Cpp B.Tech Notes pdf
Polymorphism lets you use a single interface to represent different underlying forms (data types). This means you can call the same method on different objects and they can behave differently.
Why Use OOP? | OOP Using Cpp B.Tech Notes pdf
Organization: Helps you organize code into logical pieces.
Reusability: Code can be reused across different parts of a program or in different programs.
Maintainability: Easier to update and maintain code because each object is a separate entity.
Example in Action | OOP Using Cpp B.Tech Notes pdf
Let’s say we’re creating a simple program to manage different types of vehicles. We’d start with a base Vehicle class and then extend it with classes like Car and Bike.
In this example, Car and Bike inherit from Vehicle and override the display method to provide specific details. This showcases polymorphism and inheritance in action.
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