Search Interview Questions
| 3364 questions in repository.|
There are more than 900 unanswered questions.
Click here and help us by providing the answer.
Have a video suggestion.
Click Correct / Improve and please let us know.
|Java - Interview Questions and Answers|
|Ans. Frankly saying I dont see much use of method overloading as its just little design convenience as you can use the same name but still have binding to different methods depending on the need.|
Method overriding is really important and is much more useful than method overloading. Along with other programming concepts like interfaces and dependency injection , it facilitates the development of software as libraries and plug-gable components.
|Help us improve. Please let us know the company, where you were asked this question :|
|Like Discuss Correct / Improve  Polymorphism|
|What are points to consider in terms of access modifier when we are overriding any method?|
|What is Polymorphism in Java ?|
| If everything is an object , Cant we declare every object as|
Object obj = new String();
|Shouldn't we make a class with all static members is its just expected to be executed as a standalone program with just one thread. Moreover Lets assume that there is no runtime Polymorphism required and there is no need for serialization ?|
| Is this Polymorphism ?|
Map<String, List<String>> inventoryManagerCountMap = new HashMap<String, ArrayList<String>>();
|When are static and instance methods resolved ? During compile time or Runtime ?|
|Which of the following is not the difference between Singleton and Static class ( Class with static members only ) ?|
| Which of the following do you think is the primary reason you would never use a static class even the application doesn't need multiple requests or threads ? |
b. Runtime Polymorphism
c. Lazy Loading
|How is static and dynamic polymorphism achieved in Java ?|