Thread: code for sending and recieving message in j2me usingg sun wireless toolkit

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import javax.microedition.io.Connector;
import javax.wireless.messaging.*;
import java.io.*;
import javax.microedition.io.PushRegistry;
public class ui extends MIDlet implements CommandListener,Runnable,MessageListener
{
public Display display;
public Form userint;
public Command exit;
public Command send;
public TextField username;
public TextField pin;
public String un;
public String pn;
public TextMessage mymsg;
public Alert disalert;
//public String dest="123456";
//public String dest_port;
//public String dest_add="sms://" +dest+":"+dest_port;
public MessageConnection mycon=null;
public ui()
{
	//dest_port=getAppProperty("SMS-Port");
	display=Display.getDisplay(this);
	send=new Command("SEND",Command.SCREEN,1);
	exit=new Command("EXIT",Command.EXIT,0);
	username=new TextField("USERNAME:","",20,TextField.ANY);
	pin=new TextField("PIN:","",10,TextField.PASSWORD);
	userint=new Form("USERINTERFACE");
	userint.append(username);
	userint.append(pin);
	userint.addCommand(send);
	userint.addCommand(exit);
	userint.setCommandListener(this);
 
 
 
}
public void startApp()
{
 
	display.setCurrent(userint);
}
public void pauseApp()
{
}
public void destroyApp(boolean abc)
{
	notifyDestroyed();
}
public void commandAction(Command c,Displayable d)
{
	if(c==send)
	{
		un=username.getString();
		pn=pin.getString();
        //sendmsg();
		new Thread(this).start();
		//destroyApp(true);
 
		//notifyDestroyed();
		disalert=new Alert("DATA SENT","WAIT FOR A MESSAGE ",null,AlertType.INFO);
				disalert.setTimeout(50000);
				disalert.addCommand(exit);
				disalert.setCommandListener(this);
		display.setCurrent(disalert);
 
 
	}
	if(c==exit)
	{
		destroyApp(true);
 
	}
}
public void run()
{
	try
				{
					mycon=(MessageConnection)Connector.open(/*dest_add*/"sms://:6000");
					mymsg=(TextMessage)mycon.newMessage(MessageConnection.TEXT_MESSAGE);
			mymsg.setPayloadText(un+pn);
			mycon.send(mymsg);
			mycon.setMessageListener(this);
			//mycon.close();
			/*public void notifyIncomingMessage(MessageConnection mycon)
						      {
 
						         Message msg = mycon.receive();
						         //do whatever you want with the message
						         if(msg instanceof TextMessage) {
						            //TextMessage tmsg = (TextMessage) msg;
 
						            System.out.println(mymsg.getPayloadText());
 
							}
 
								}*/
 
				}
			catch(Exception ex1)
			{
		    }
		    // Time to receive one.
			//get reference to MessageConnection object
	}
			      public void notifyIncomingMessage(MessageConnection mycon)
			      {
					  try
					  {
			         Message msg = mycon.receive();
			         //do whatever you want with the message
			         if(msg instanceof TextMessage) {
			            //TextMessage tmsg = (TextMessage) msg;
 
			            System.out.println(mymsg.getPayloadText());
					}
				}
					catch(Exception e)
					{
					}
 
					}
 
 
 
}
//please help me with d port number and address..

with the above code i m able to figure out where my message is gng.. i tried changing the port no and address still the same problem its not gng to its recepient..
teme wats wrong in dis code