Contents of an Interface

What are all the thin开发者_运维百科gs that an interface can have, apart from abstract method and static variables?

Please give me few explainations. Inputs are highly welcomed.

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Wikipedia is your friend: http://en.wikipedia.org/wiki/Java_interface

The article explains it well and also has examples.

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It can contain an inner class or interface also. Hava a look at Map.Entry.

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An interface can have inner classes in addition to what you have mentioned.