Blackberry version "hello world", which use a socket to send msg to a server

 
// HelloWorldScreen.java
 
import net.rim.device.api.ui.component.LabelField;

import net.rim.device.api.ui.container.MainScreen;



public class HelloWorldScreen extends MainScreen {


    public HelloWorldScreen() {

        add(new LabelField("Hello World"));

    }


}
 
 
// helloworld.java
import java.io.OutputStreamWriter;


import javax.microedition.io.Connector;

import ja