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|Java - Interview Questions and Answers|
|Very frequently asked in phone and walk in interviews.|
|Ans. An interface without any method declaration is called as marker interface. there are 3 in-built interfaces in JVM i.e. serializable, clonable, remote|
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|Like Discuss Correct / Improve  java   oops   interfaces   marker interface   serializable   clonable Asked in 21 Companies intermediate   frequent|
Try 1 Question(s) Test
|Difference between serializable and externalizable interface ?|
|Is runnable a Marker interface ?|
|Whats the purpose of marker interfaces ?|
|What is a cloneable interface and what all methods does it contain?|
|How Marker interfaces works internally ?|
|What is a delete marker wrt to S3 objects ?|