import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

public class Hello extends MIDlet {

 public void startApp() {
Form form = new Form("");
form.append("Hello, World!");
Display.getDisplay(this).setCurrent(form);

 }

 public void pauseApp() {
 }

 public void destroyApp(boolean unconditional) {
 }
}