如何将Java应用程序放在网上？

I am writing a minesweeper program in Netbeans, with java. I would like my friends to be able to try it, preferably on from there own computer, over the web. I have already made a .jar file, but do not know if how to proceed, or even if this is possible. How would I put it on the web so they can try it out?I am writing a minesweeper program in Netbeans,