LWUIT: ButtonGroup

The ButtonGroup component manages the selected and unselected states for a set of
RadioButtons. For the group, the ButtonGroup instance guarantees that only one
button can be selected at a time.

import javax.microedition.midlet.*;
import com.sun.lwuit.*;
import com.sun.lwuit.events.*;
import com.sun.lwuit.layouts.BorderLayout;

public class LwuitButtonGroup extends MIDlet implements ActionListener {
    public void startApp() {
        Display.init(this);
        Form f = new Form("Hello, MIDlet in LWUIT!");
        Command exitCommand = new Command("Exit");
        f.addCommand(exitCommand);
        f.setCommandListener(this);

        f.setTitle("ButtonGroup");

        RadioButton radioButton1 = new RadioButton("Radio Button 1");
        RadioButton radioButton2 = new RadioButton("Radio Button 2");
        RadioButton radioButton3 = new RadioButton("Radio Button 3");
        ButtonGroup buttonGroup1 = new ButtonGroup();
        buttonGroup1.add(radioButton1);
        buttonGroup1.add(radioButton2);
        buttonGroup1.add(radioButton3);
        f.addComponent(radioButton1);
        f.addComponent(radioButton2);
        f.addComponent(radioButton3);

        RadioButton radioButtonA = new RadioButton("Radio Button A");
        RadioButton radioButtonB = new RadioButton("Radio Button B");
        ButtonGroup buttonGroup2 = new ButtonGroup();
        buttonGroup2.add(radioButtonA);
        buttonGroup2.add(radioButtonB);
        f.addComponent(radioButtonA);
        f.addComponent(radioButtonB);

        f.show();

    }

    public void pauseApp() {}
    public void destroyApp(boolean unconditional) {}
    public void actionPerformed(ActionEvent ae) {
        notifyDestroyed();
    }
}