Questão Chuck Norris!

package PartesGraficas;

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class SwingOtherButton extends JFrame {

  private JRadioButton rb1, rb2, rb3;

  private JCheckBox cb1, cb2, cb3;

  private JLabel lRadio, lCheck;



  public SwingOtherButton() {

    setTitle("Swing Other Buttons");

    getContentPane().setLayout(new GridLayout(1, 2));

    JPanel pRadio = new JPanel(new GridLayout(4, 1)),

           pCheck = new JPanel(new GridLayout(4, 1));

    ImageIcon selected = new ImageIcon("selected.gif"),

              deselected = new ImageIcon("deselected.gif");

    pRadio.add(rb1 = new JRadioButton("Alternativa 1"));

    pRadio.add(rb2 = new JRadioButton("Alternativa 2"));

    pRadio.add(rb3 = new JRadioButton("Alternativa 3", deselected));

    rb3.setSelectedIcon(selected);

    pRadio.add(lRadio = new JLabel("Sem Selecao"));

    pRadio.setBorder(BorderFactory.createEtchedBorder());

    getContentPane().add(pRadio);

    pCheck.add(cb1 = new JCheckBox("Alternativa 1"));

    pCheck.add(cb2 = new JCheckBox("Alternativa 2"));

    pCheck.add(cb3 = new JCheckBox("Alternativa 3", deselected));

    cb3.setSelectedIcon(selected);

    pCheck.add(lCheck = new JLabel("Sem Selecao"));

    pCheck.setBorder(BorderFactory.createEtchedBorder());

    getContentPane().add(pCheck);

    RadioItemListener ril = new RadioItemListener();    

    rb1.addItemListener(ril);

    rb2.addItemListener(ril);

    rb3.addItemListener(ril);

    CheckItemListener cil = new CheckItemListener();    

    cb1.addItemListener(cil);

    cb2.addItemListener(cil);

    cb3.addItemListener(cil);

    ButtonGroup bg = new ButtonGroup();

    bg.add(rb1);bg.add(rb2);bg.add(rb3);

    pack();

    setSize(300,100);

    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

  }

   class RadioItemListener implements ItemListener{

    public void itemStateChanged(ItemEvent e){

     JRadioButton rb = (JRadioButton)e.getSource();

     String item = rb.getText();

     lRadio.setText("Selecao: "+item.charAt(item.length()-1));

    }

   }

   class CheckItemListener implements ItemListener{

    public void itemStateChanged(ItemEvent e){

     String itens = cb1.isSelected()?"1 ":"";

     itens += cb2.isSelected()?"2 ":"";

     itens += cb3.isSelected()?"3 ":"";

     lCheck.setText("Selecao: "+itens);

    }

   }

   public static void main(String args[])

   {

    new SwingOtherButton().setVisible(true);

   }

}