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what is the purpose of marker interface

umesh rawat
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Joined: Mar 03, 2007
Posts: 41
what is the purpose of marker interface
i know that serializable and clonable are marker interfaces .
but dont know why they have define them if noting is inside them.

Umesh rawat
Rmw 2019
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Umesh rawat <br />Rmw -2019

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Ulf Dittmer
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Joined: Mar 22, 2005
Posts: 42648
    
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This has been asked and answered exhaustively many, many times. Please use the "Search" link at the top of the page to find the previous discussions. Make sure you search through all forums, not just this one.


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umesh rawat
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Joined: Mar 03, 2007
Posts: 41
Thanks for this idea
 
Consider Paul's rocket mass heater.
 
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