Program that can copy files to clients

[Jacotheron]

Hi
I am still a beginner with Java.
I want to know how to program a program that can copy files to clients (on a LAN) simultaneously. The reason I want this program is to send files to other computers without opening a new stream for each computer (i.e. that the clients get the same information at the same time from the same stream).
Will it be possible to do this (and how?) or is there an other option (already written program, could not find anything on google) or is it just impossible?

Thanks for any help in advanced

[qlluq]

u can use these keywords for google

"java multithreaded socket programming over lan"

[Jacotheron]

Thank you I will check this out