What is Oops and explain four pillars of Oops

Question

Accepted Answer

Oops stands for Object-Oriented Programming. The four pillars of Oops are Inheritance, Encapsulation, Abstraction, and Polymorphism.

Inheritance allows a class to inherit properties and behavior from another class. For example, a 'Car' class can inherit from a 'Vehicle' class.
Encapsulation refers to the bundling of data and methods that operate on the data into a single unit. For example, using private variables and public methods in a class.
Abstraction involves hiding the complex implementation details and showing only the necessary features of an object. For example, a 'Shape' class can have abstract methods like 'calculateArea'.
Polymorphism allows objects of different classes to be treated as objects of a common superclass. For example, a 'Bird' class and a 'Fish' class both inheriting from an 'Animal' class.

Top Tech Q Ware Technologies Software Developer interview questions & answers