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|Java - Interview Questions and Answers|
|Ans. Yes, a Class is supposed to define all abstract methods declared in the interface. With Java 8 , Interfaces can have default methods which need not be implemented by the implementing class.|
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|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 ?|
|If an Abstract class has only abstract methods, What's the difference between such a class and an interface ?|
|Can we declare interface methods as private ?|
|What are the design considerations while making a choice between using interface and abstract class ?|
|What are the Core Interfaces of Hibernate Framework ?|
|Can we use static method definitions in Interfaces ?|