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doubt in type casting

 
Ranch Hand
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Hi,
I have a doubt in type casting. what is main purpose of casting?where do we use it? can you explain me .

Thanks in advance.
 
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I suggest you do something about it first. And then give your puzzles here.
 
Greenhorn
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Write some non-trivial Java programs and you'll soon start to see what it's for.
 
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