Oops pillars and real life examples

Question

Accepted Answer

The OOPs pillars are four principles of object-oriented programming: Encapsulation, Inheritance, Abstraction, and Polymorphism.

Encapsulation: bundling data and methods that operate on the data into a single unit (class). Example: a car class with properties like speed and methods like accelerate.
Inheritance: creating new classes based on existing classes, inheriting their attributes and methods. Example: a class Animal with subclasses like Dog and Cat.
Abstraction: hiding complex implementation details and showing only the necessary features. Example: a remote control for a TV, where the user doesn't need to know how the TV works internally.
Polymorphism: allowing objects of different classes to be treated as objects of a common superclass. Example: a method that can take different types of shapes (circle, square) as input.

Popular interview questions of Programmer