Some questions on file saring progs??

hi, im a yr 12 student studying java. My major assignment is to design a program, i was thinking of making a file share program, think of something like KaZaA.
i really dont know where to start. does anyone have ideas, i would appreciate any help, i dont want people to send code or class files, i just want some ideas for networking and other commands i need to reseach; and maybe a writen description on how to approach the problem and how to set it up.

Kasaa is a peer to peer file sharing program. The subject is broad to teach on a forum like this. I would suggest going to
http://www.google.com
entering (including quotes)
"peer to peer" "file sharing"
and reading something about it before asking an open ended question like that here. You might also go to
http://www.amazon.com
and searching for
"peer to peer"
and seeing what books are available

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    >
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    [email protected]
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