Keeping the server running

Question

Is there a way to keep just server class up or it's up as long as other application uses that. What I mean I whote that:
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.net.InetAddress;
import java.net.ServerSocket;
import javax.swing.Timer;
public class MyServer extends ServerSocket implements ActionListener {
     public MyServer() throws IOException {
          super(4444, 0, InetAddress.getByName("localhost"));
          Timer timer = new Timer(100, this);
          timer.start();
     public void actionPerformed(ActionEvent e) {
          if (this.isClosed()) {
               System.out.println("Ups! We're closed");
               System.exit(1);
     public static void main(String args[]) {
          try {
               new MyServer();
          } catch (IOException ioe) {
               ioe.printStackTrace();
               System.exit(1);
}and I want it to run separately. Just launch it and it should run until it's killed. How to do that?

Answer 1

Okay I've come up with such solution:
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.net.InetAddress;
import java.net.ServerSocket;
import javax.swing.Timer;
public class MyServer extends ServerSocket implements ActionListener {
     private static final int ALIVE=1;
     private static final int DEAD=0;
     private static int state=ALIVE;
     public MyServer() throws IOException {
          super(4444, 0, InetAddress.getByName("localhost"));
          Timer timer = new Timer(100, this);
          timer.start();
     public void actionPerformed(ActionEvent e) {
          if (this.isClosed()) {
               System.out.println("Ups! We're closed");
               System.exit(1);
     public static int getState(){
          return state;
     public static void kill(){
          state=DEAD;
     public static void main(String args[]) {
          try {
               MyServer server = new MyServer();
               while (server.getState()==ALIVE){
                    Thread.sleep(100);
          } catch (IOException ioe) {
               ioe.printStackTrace();
               System.exit(1);
          } catch (InterruptedException ie){
               ie.printStackTrace();
               System.exit(1);
}Anyone has better one?