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extend or implement?

 
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we can create thread by extending Thread class or implementing Runnable interface...

as far as my knowledge goes implementing is a better option for following 2 reasons:
(1) by implementing i have option of extending another class
(2) by extending the entire Thread class i would have the overhead of all properties of Thread class...which in some cases is not required.

so my question is while creating a thread which is the best and effecient way to create it and why?

help appreciated

cheers
amal
 
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Extending Thread really means that you're creating a more specialized class of Thread - to do more than what Thread does, if you look at it from an OO perspective.
If that is not your goal, implementing is the way to go.
 
Don't get me started about those stupid light bulbs.
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