Java Programming Tutorial - 68, 69 - JComboBox

import java.awt.FlowLayout;
import java.awt.event.ItemListener;
import java.awt.event.ItemEvent;
import javax.swing.JLabel;
import javax.swing.JFrame;
import javax.swing.JComboBox;
import javax.swing.ImageIcon;
import javax.swing.Icon;

class ComboBox {
   public static void main(String args[ ]) {
      Box box = new Box();
      box.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      box.setSize(200, 100);
      box.setVisible(true);
   }
}

class Box extends JFrame {
   private JComboBox list;
   private JLabel picture;
   private static String fileName[ ] = {"x.png", "y.png"};
   private Icon pic[ ] = {new ImageIcon(getClass().getResource(fileName[0])),
                     new ImageIcon(getClass().getResource(fileName[1]))};

   Box() {
      super("Program: list");
      setLayout(new FlowLayout());
      list = new JComboBox(fileName);

      list.addItemListener(
         new ItemListener() {
            public void itemStateChanged(ItemEvent event) {
               if(event.getStateChange() == ItemEvent.SELECTED)
                  picture.setIcon(pic[list.getSelectedIndex()]);
            }
         }
      );

      add(list);
      picture = new JLabel(pic[0]);
      add(picture);

//      TheHandler handler = new TheHandler();
//      list.addItemListener(handler);
   }

//   private class TheHandler implements ItemListener {
//      public void itemStateChanged(ItemEvent event) {
//         if(event.getStateChange() == ItemEvent.SELECTED)
//            picture.setIcon(pic[list.getSelectedIndex()]);
//      }
//   }

}