Source Code : RadioButton Demo

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RadioButton Demo

//jad file (please verify the jar size)
/*
MIDlet-Name: RadioButtonsMIDlet
MIDlet-Version: 1.0
MIDlet-Vendor: MyCompany
MIDlet-Jar-URL: RadioButtonsMIDlet.jar
MIDlet-1: RadioButtonsMIDlet, , RadioButtonsMIDlet
MicroEdition-Configuration: CLDC-1.0
MicroEdition-Profile: MIDP-1.0
MIDlet-JAR-SIZE: 100

*/

import javax.microedition.lcdui.Choice;
import javax.microedition.lcdui.ChoiceGroup;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
import javax.microedition.lcdui.StringItem;
import javax.microedition.midlet.MIDlet;

public class RadioButtonsMIDlet extends MIDlet implements CommandListener {
  private Display display;

  private Form form = new Form("Gender");

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

  private Command process = new Command("Process", Command.SCREEN, 2);

  private ChoiceGroup gender = new ChoiceGroup("Enter Gender", Choice.EXCLUSIVE);

  private int currentIndex;

  private int genderIndex;

  public RadioButtonsMIDlet() {
    display = Display.getDisplay(this);

    gender.append("Female", null);
    currentIndex = gender.append("Male ", null);
    gender.setSelectedIndex(currentIndex, true);

    genderIndex = form.append(gender);
    form.addCommand(exit);
    form.addCommand(process);
    form.setCommandListener(this);
  }

  public void startApp() {
    display.setCurrent(form);
  }

  public void pauseApp() {
  }

  public void destroyApp(boolean unconditional) {
  }

  public void commandAction(Command command, Displayable displayable) {
    if (command == exit) {
      destroyApp(false);
      notifyDestroyed();
    } else if (command == process) {
      currentIndex = gender.getSelectedIndex();
      StringItem message = new StringItem("Gender: ", gender.getString(currentIndex));
      form.append(message);
      form.delete(genderIndex);
      form.removeCommand(process);
    }
  }
}

           
       

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