?? test.java
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import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
import java.awt.event.*;
public class Test extends JApplet {
private ImageIcon crabIcon = new ImageIcon("crab.gif");
private ImageIcon eagleIcon = new ImageIcon("eagle.gif");
private JCheckBoxMenuItem
crabItem = new JCheckBoxMenuItem(crabIcon),
eagleItem = new JCheckBoxMenuItem("eagle", eagleIcon),
ladybugItem = new JCheckBoxMenuItem("ladybug");
public void init() {
Container contentPane = getContentPane();
JMenuBar mb = new JMenuBar();
JMenu checkBoxMenu = new JMenu("Endangered Species");
Listener listener = new Listener();
checkBoxMenu.add(crabItem);
checkBoxMenu.add(eagleItem);
checkBoxMenu.add(ladybugItem);
crabItem.addActionListener(listener);
eagleItem.addActionListener(listener);
ladybugItem.addActionListener(listener);
mb.add(checkBoxMenu);
setJMenuBar(mb);
}
class Listener implements ActionListener {
public void actionPerformed(ActionEvent e) {
showStatus("crab: " + crabItem.getState() + ", " +
"eagle: " + eagleItem.getState() + ", " +
"ladybug: " + ladybugItem.getState());
}
}
}
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