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|Java - Interview Questions and Answers|
|Ans. Encapsulation facilitate hiding and restricted access and hence more of a security feature. Encapsulation is definitely a great feature as when applications expand criss cross communication between objects / modules could lead to blunders.|
Inheritance facilitates code reuse.
Polymorphism comprise of method overloaded ( which to me is negligible usage ) and method overriding. Method overriding is of great usage as it facilitates concept of interfaces and plugin development.
So it’s Security / Organization vs
Code Reuse / Support for other features like overriding vs
Contracts / Plugin Development facilitating the creation of frameworks / libraries.
Which is more important may vary from application to application , its scale , its use , its sensitivity etc.
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|What is the difference between Encapsulation and Abstraction?|
|What are points to consider in terms of access modifier when we are overriding any method?|
|What is Polymorphism in Java ?|
|Can you give a real world example of Encapsulation and Abstraction ?|
|Why every object constructor automatically call super() in Object before its own constructors?|
|Difference between Overloading and Overriding ?|
|Difference between Composition and Inheritance ?|
|How compiler handles the exceptions in overriding ?|