Search Interview Questions
| More than 3000 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.
|Interview Questions and Answers|
|Ans. Keep it as a Abstract Class if its a "Is a" Relationsship and should do subset/all of the functionality. Keep it as Interface if its a "Should Do" relationship.|
|Help us improve. Please let us know the company, where you were asked this question :|
|Like Discuss Correct / Improve  java   oops   abstract classes   interfaces   advanced Asked in 3 Companies|
|Differences between abstract class and interface ?|
|What are the different uses of Interfaces in Java ?|
|Why can't we have diamond problem with interfaces ?|
| What is the difference between List, Set and Map ?|
What are the different Java Collections Interfaces ?
|What are Marker Interfaces ? Name few Java marker interfaces ?|
|Can we declare interface methods as private ?|
|Why do we need Thread class even in case we execute thread using runnable interface ?|
|Which of the following doesn't extend Collection interface ?|
|If an Abstract class has only abstract methods, What's the difference between such a class and an interface ?|
|What is an API ( Application Programming Interface ) ?|