inheritance in java - Wikitechy https://www.wikitechy.com/interview-questions/tag/inheritance-in-java/ Interview Questions Wed, 15 Sep 2021 07:21:55 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://www.wikitechy.com/interview-questions/wp-content/uploads/2025/10/cropped-wikitechy-icon-32x32.png inheritance in java - Wikitechy https://www.wikitechy.com/interview-questions/tag/inheritance-in-java/ 32 32 Tarun works all night long writing code and writing more and more classes for each object he now thinks that he can write a superclass which defines some hierarchical feature for other classes, what can he use ? https://www.wikitechy.com/interview-questions/programming/tarun-works-all-night-long-writing-code-and-writing-more-and-more-classes-for-each-object-he-now-thinks-that-he-can-write-a-superclass-which-defines-some-hierarchical-feature-for-other-classes-what-c/ https://www.wikitechy.com/interview-questions/programming/tarun-works-all-night-long-writing-code-and-writing-more-and-more-classes-for-each-object-he-now-thinks-that-he-can-write-a-superclass-which-defines-some-hierarchical-feature-for-other-classes-what-c/#respond Fri, 27 Aug 2021 00:19:40 +0000 https://www.wikitechy.com/interview-questions/?p=2569

Tarun works all night long writing code and writing more and more classes for each object he now thinks that he can write a superclass which defines some hierarchical feature for other classes, what can he use ?

A. Cascading

B. Hierarchical super positioning

C. Inheritance

D. Polymorphism

Answer : C. Inheritance

Explanation :

  • In object-oriented programming, inheritance is that the mechanism of basing an object or category upon another object (prototypical inheritance) or category (class-based inheritance), holding similar implementation.
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Palak enters a coding competition she wants to write code to pass down values from one class to another. Which of following concept should she use to do so ?

A. Inherits

B. Extends

C. Construct

D. All of the mentioned

Answer : C. Extends

Explanation:

  • A class in Java can extend another class to become a subclass. When class B extends the class A, B becomes subclass (child) and A becomes superclass (parent). A subclass can reuse all the features of the parent class and code reuse is a major reason for extending a class
Inheritance in Java
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