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Marker Interface???

 
Greenhorn
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What is the use of a marker interrface if it has no contents???
eg. Serializable interface.
 
Bartender
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This gets asked a lot. Search the "Java in General (beginner)" forum, you'll find plenty of answers.
 
Ranch Hand
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Hi,

It's not like that 'marker interface' does nothing? If you dig inside this 'Serializable' interface, you will come to know how does this work. There are 'writeObject' and 'readObject' kind of methods hidden behind the scene.

regards
 
Paul Sturrock
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Originally posted by Ravinder S Edhan:

If you dig inside this 'Serializable' interface, you will come to know how does this work.



Ehm, no you won't. It is a marker interface, it has no source code that does anything. Below is a truncated version of the source code for Serializable (I've removed the comments to save space):
 
author and iconoclast
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Moving to Java in General (Beginner).
 
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