Running a Java application on a server.

Question

I made a simple Java app that acts as a server. I can't figure out how to run it though (well, I can run it on my own machine of course, but that's no good). I've looked into servlets but I get the impression that a servlet is for the web, while I want to run a socket-based program. Do I need a special server, or is myjavaserver.com (for testing) good enough?
Thanks

Answer 1

I don't want to run the application on my home machine because I don't want to leave it on all day, my internet connection is not as fast as a hosting provider's, and I don't like leaving a port open all day (although probably nothing will happen).
So if I have a small app like import java.net.*;
public class ServerTest {
     public static void main(String[] args) throws Exception {
          int port = 12345;
          ServerSocket servSock = new ServerSocket(port);
          while (true) {
               Socket socket = servSock.accept();
               System.out.println("Connection to server established.");
} how would I run that on a hosting provider's server? At home I can just call "java ServerTest" from the command line, but for obvious reasons I cannot do this on a web server that I do not have physical access to.