Java tutorial
import java.io.ObjectOutputStream; import java.net.ServerSocket; import java.net.Socket; import java.util.Hashtable; public class Main { public static void main(String args[]) throws Exception { ServerSocket ssock = new ServerSocket(1234); Hashtable hash = new Hashtable(); hash.put("A", "a"); while (true) { Socket sock = ssock.accept(); ObjectOutputStream ostream = new ObjectOutputStream(sock.getOutputStream()); ostream.writeObject(hash); ostream.close(); sock.close(); } } }