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Collection -Set coding

 
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Suppose that you would like to create a new instance of a class that implements the Set interface, and you would like the new instance to be initialized with the elements of an existing Set. If you would like the iteration order of the new Set to be the same as that of the existing Set, then which concrete implementation of the Set interface should be used for the new instance?

This is the question that I am working in a coding way.But i am having trouble.Please help me to figure out.

My coding is



Why should I need to implementn toArray() method? Why this add() method is not working?
 
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Have you override all the methods of Set first of all?
 
Shiva Mohan
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Naseem- do i need to override all of the Set 15 methods?
 
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Yes, you do.

An interface simply demands that an implementing class to implement a certain behavior, leaving it up to the implementing class as to how this is to be done.
[ August 09, 2006: Message edited by: wise owen ]
 
Don't get me started about those stupid light bulbs.
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