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    Question

    Which feature of OOP allows hiding implementation

    details while showing only the necessary functionality?
    A Inheritance Correct Answer Incorrect Answer
    B Abstraction Correct Answer Incorrect Answer
    C Encapsulation Correct Answer Incorrect Answer
    D Polymorphism Correct Answer Incorrect Answer
    E Composition Correct Answer Incorrect Answer

    Solution

    Abstraction allows a programmer to focus on essential features of an object while ignoring the underlying complexity. It defines the "what" of functionality without exposing the "how." For example, an interface Vehicle may have a method drive() without specifying how it operates. Different classes like Car and Bike can implement drive() in their way while hiding their internal details. Abstraction is achieved using abstract classes and interfaces. It simplifies system design by providing a clear separation of concerns, enabling developers to focus on high-level interactions rather than low-level details. Why Other Options Are Wrong Option A : "Inheritance" Inheritance enables code reuse by sharing functionality but does not inherently involve hiding implementation details. Option C : "Encapsulation" Encapsulation protects and restricts access to data but is more concerned with access control than hiding implementation logic. Option D : "Polymorphism" Polymorphism deals with dynamic method binding and does not focus on hiding details. Option E : "Composition" Composition models "whole-part" relationships and is unrelated to abstraction.

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