import java.net.*;import java.io.*;public class KKMultiServer {    public static void main(String[] args) throws IOException {        ServerSocket serverSocket = null;        boolean listening = true;        try {            serverSocket = new ServerSocket(4444);        } catch (IOException e) {            System.err.println("Could not listen on port: 4444.");            System.exit(-1);        }        while (listening)	    new KKMultiServerThread(serverSocket.accept()).start();        serverSocket.close();    }}