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OOPs Interview Questions and Answers

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Ques 1. What is Object-Oriented Programming (OOP)?

OOP is a programming paradigm that uses objects to organize code. It involves concepts like encapsulation, inheritance, and polymorphism.

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Ques 2. Explain the concept of encapsulation.

Encapsulation is the bundling of data and methods that operate on that data into a single unit known as a class. It restricts access to some of the object's components.

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Ques 3. What is inheritance in OOP?

Inheritance is a mechanism where a new class inherits properties and behaviors from an existing class. It promotes code reusability and establishes a relationship between classes.

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Ques 4. Explain polymorphism.

Polymorphism allows objects of different types to be treated as objects of a common type. It can take the form of method overloading or method overriding.

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Ques 5. What is the difference between abstraction and encapsulation?

Abstraction involves hiding the unnecessary details while encapsulation involves bundling the data and methods that operate on the data into a single unit.

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