15a16,17
> import java.awt.event.ActionListener;
> import java.awt.event.ActionEvent;
25a29,29
> 	private Command fCommand;
26,26c27,27
< public class CommandMenuItem extends JMenuItem implements CommandHolder{
---
> public class CommandMenuItem extends JMenuItem implements CommandHolder, ActionListener {
27,28d27
< 	Command fCommand;
< 
35a37,37
> 		addActionListener(this);
45a48,48
> 		addActionListener(this);
60,60d62
< 
70,70d71
< 
78a80,86
> 
> 	/**
> 	 * Executes the command.
> 	 */
> 	public void actionPerformed(ActionEvent e) {
> 		getCommand().execute();
> 	}