Polymorphism is the ability of a class instance to behave as if it were an instance of another class in its inheritance tree, most often one of its ancestor classes.
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Polymorphism is the ability of a class instance to behave as if it were an instance of another class in its inheritance tree, most often one of its ancestor classes.
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Q18. Given code:
A18. Firstly, let’s take abstraction and encapsulation as the difference is subtle. Abstraction is often not possible without encapsulation because if a class exposes its internal state,
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A software application is built by coupling various classes, modules, and components. Without coupling, you can’t build a software system. But, the software applications are always subject to changes and...
Design principles interview questions & answers for Java developers so that you can expand your OOP skills to design robust Java apps Q25. What are the SOLID design principles? …...
Tip #1: Tightly encapsulate your classes. A class generally contains data as well as methods, and is responsible for the integrity of its own data. … Read more ›...
A trivial coding example (i.e. a Calculator) tackled using the following programming paradigms in Java not only to perform well in coding interviews, but also to learn these programming paradigms.
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If you don’t get Java OOPs interview questions & answers right in the job interviews you can say OOPS !!!! to your Java interview success. Q1. … Read more ›...
Q. Is there anything wrong with the following class design? If yes, can the design be improved? JUnit test class. A.… Read more ›...
We have already looked at Why favor composition over inheritance? with reasoning and code examples. Inheritance still has its use and let’s look at some real life examples. … Read...
This is not only one of the most popular Java OOP Interview Questions & Answers asked 90% of the time in job interviews, but also a key OOP concept you must know well.
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