J2ME GUI Controls - Checkbox

J2ME program for Checkbox

import javax.microedition.lcdui.*;

import javax.microedition.midlet.MIDlet;

public class CheckExp extends MIDlet implements CommandListener

{

Form form;

Command exit,save;

ChoiceGroup check;

public void startApp()

{

          Display display = Display.getDisplay(this);

          form = new Form("Check Box Example");

          try

          {        check  = new ChoiceGroup("Subjects : ",Choice.MULTIPLE);

                   check.append("IP",null);

                   check.append("ADBMS",null);

                   check.append("COM",null);

          }

          catch(Exception e) 

{e.printStackTrace();}

          form.append(check);

          exit = new Command("Exit", Command.EXIT, 1);

          save = new Command("Save", Command.OK, 1);

          form.addCommand(save);

          form.addCommand(exit);

          form.setCommandListener(this);

          display.setCurrent(form);

}

  public void pauseApp ()  {}

  public void destroyApp(boolean unconditional)   {} 

  public void commandAction(Command c, Displayable s)

  {

if (c == exit)

          {

                   notifyDestroyed();

}

   }

}

Output:-