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|Interview Questions and Answers|
|Ans. They just tell the compiler that the objects of the classes implementing the interfaces with no defined methods need to be treated differently.|
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|Like Discuss Correct / Improve  java   interfaces   marker interfaces   clonable   serializable basic   frequent|
|What are Marker Interfaces ? Name few Java marker interfaces ?|
|What is the default data type of state variables in Clonable interface and Serializable interface ?|