Two sockets in a single server

Question

May I open two sockets with different listening port numbers in a single server? For each socket, the way to deal with the inputstream and outputstream is different. May the thread be like this:
public class twoSocketServer implements Runnable {
public twoSocketServer() {
try{
SSLServerSocketFactory fact = SSLServerSocketFactory.getInstance(rand, selfPrivateKey, selfCertificate, trustEngine, null);
serverSocket1 = (SSLServerSocket) fact.createServerSocket(ListeningPort1);
serverSocket1.setNeedClientAuth(false);
serverSocket2 = (SSLServerSocket) fact.createServerSocket(ListeningPort2);
serverSocket2.setNeedClientAuth(false);
} catch {...}
public void run()
while(true)
try
SSLSocket socket1 = (SSLSocket) serverSocket1.accept();
new handler1(socket1).start();
SSLSocket socket2 = (SSLSocket) serverSocket2.accept();
new handler2(socket2).start();
} catch {...}
class handler1 extends Thread {...}
class handler2 extends Thread {...}
Is there something wrong with this idea? If yes, how can I correct it? Thanks.

Answer 1

This is better :
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.util.*;
import java.io.*;
import java.net.*;
public class MultSrv extends JFrame
     JTextArea   panel   = new JTextArea();
     JScrollPane sbr     = new JScrollPane(panel);
     Vector      sockets = new Vector();
     Vector      servers = new Vector();
public MultSrv() 
     super();
     SocServer ss1 = new SocServer(this,4444);
     if (ss1.servS != null) ss1.start();
          else               System.out.println("err");
     SocServer ss2 = new SocServer(this,4445);
     if (ss2.servS != null) ss2.start();
          else               System.out.println("err");
     SocServer ss3 = new SocServer(this,4446);
     if (ss3.servS != null) ss3.start();
          else               System.out.println("err");
     try
          InetAddress inet = InetAddress.getLocalHost();
          setTitle("MultServer v1 - "+inet+"  Port=4444/5/6");
     catch(IOException e){}
     setBounds(10,10,400,450);
     setContentPane(sbr);
     panel.setEditable(false);
     addWindowListener(new WindowAdapter()
    {     public void windowClosing(WindowEvent ev)
          {   dispose();
               System.exit(0);}});
     setVisible(true);
     javax.swing.Timer ta = new javax.swing.Timer(2000, new ActionListener()
          public void actionPerformed(ActionEvent e)
               panel.setText("");
               for (int i = 0; i < sockets.size(); i++)
                    SocServer ss = (SocServer)sockets.get(i);
                    if (ss.servS == null) panel.append(""+ss.port +ss.err);
                         else              panel.append(""+ss.port +" Active");
                    panel.append("\n");     
               for (int i = 0; i < servers.size(); i++)
                    Server server = (Server)servers.get(i);
                    panel.append(""+server.clnt.getInetAddress()+" Is serviced");
               repaint();
     ta.start();     
public void go(Socket clnt)
     Server server = new Server(clnt);
     servers.add(server);
     server.start();
//  The ServerSocket
public class SocServer extends Thread
     ServerSocket servS;
     int          port;
     String       err = "";
     Socket       clnt;
     MultSrv      mserv;
public SocServer(MultSrv mserv, int port) 
     this.mserv = mserv;
     this.port  = port;
     sockets.add(this);
     try
          servS = new ServerSocket(port);
     catch (IOException e)
          err = e.toString();;
public void run()
     try
          while (true)
               clnt = servS.accept();
               mserv.go(clnt);
     catch (IOException e)
//  The Server.. one for each client
public class Server extends Thread
     Socket                clnt = null;
     OutputStream       out  = null;
     InputStream        ins  = null;
public Server(Socket soc) 
     clnt = soc;
public void run()
     try
          ins  = clnt.getInputStream();
          out  = clnt.getOutputStream();
          while (true)
     catch (IOException e){}
     try
          ins.close();
          out.close();
          clnt.close();
     catch (IOException e){}
public static void main (String[] args) 
     new MultSrv();
}