这个是我的代码： 
代码可能有点长，但是思路简单。关键就是菜单中无法显示出图标来，无法显示1.gif这个图象来。 
可能这里不怎么好看，我在别的地方写了好了用JAVA代码编辑器写好了，地址：
[url=http://www.chinajavaworld.com/thread.jspa?threadID=747071&tstart=0]http://www.chinajavaworld.com/thread.jspa?threadID=747071&tstart=0[/url]
package jmenu;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class MenuMain{
    public static void main(String[]args){
        MenuFrame frame=new MenuFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.show();
    }
}
class MenuFrame extends JFrame{
    private Action saveaction,saveasaction;
    private JCheckBoxMenuItem readonly;
    private JPopupMenu pop;
    public MenuFrame(){
        this.setTitle("Jmenu Test");
        this.setSize(400,400);
        
        JMenu filemenu=new JMenu("File");
        JMenuItem newitem=filemenu.add(new TestAction("New"));
        
        JMenuItem openitem=filemenu.add(new TestAction("Open"));
        openitem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O,InputEvent.CTRL_MASK));
        filemenu.addSeparator();
        
        saveaction=new TestAction("Save");
        JMenuItem saveitem=filemenu.add(saveaction);
        saveitem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,InputEvent.CTRL_DOWN_MASK));
        
        saveasaction=new TestAction("Save as");
        filemenu.add(saveasaction);
        filemenu.addSeparator();
        
        filemenu.add(new 
                AbstractAction("Exit"){
                    public void actionPerformed(ActionEvent e){
                        System.exit(0);
                    }
        }
        );
        
        readonly=new JCheckBoxMenuItem("Read-only");
        readonly.addActionListener(new
                ActionListener(){
                    public void actionPerformed(ActionEvent e){
                        boolean saveok=! readonly.isSelected();
                        saveaction.setEnabled(saveok);
                        saveasaction.setEnabled(saveok);
                    }
                }
        );
        
        ButtonGroup buttongroup=new ButtonGroup();        
        JRadioButtonMenuItem inserttiem=new JRadioButtonMenuItem("Insert",true);
        JRadioButtonMenuItem overtypeitem=new JRadioButtonMenuItem("overtype",false);
        buttongroup.add(inserttiem);
        buttongroup.add(overtypeitem);
        
        
        Action cutaction=new TestAction("Cut");
        cutaction.putValue(Action.SMALL_ICON,new ImageIcon("1.gif"));//本来这个1.gif就要显示在菜单中啊。
        Action copyaction=new TestAction("Copy");
        copyaction.putValue(Action.SMALL_ICON,new ImageIcon("1.gif"));
        
        JMenu editmenu=new JMenu("Edit");
        editmenu.add(cutaction);
        editmenu.add(copyaction);
        editmenu.addSeparator();
        
        JMenu optionmenu=new JMenu("Option");
        optionmenu.add(readonly);
        optionmenu.add(inserttiem);
        optionmenu.add(overtypeitem);
        
        filemenu.add(optionmenu);
        
        JMenuBar menubar=new JMenuBar();
        menubar.add(filemenu);
        this.setJMenuBar(menubar);
        
        //popup menu
        pop=new JPopupMenu();
        pop.add(cutaction);
        pop.add(copyaction);
        
        this.getContentPane().addMouseListener(new
                MouseAdapter()
                {
                    public void mousePressed(MouseEvent e){
                        
                        //if(e.isPopupTrigger()){
                            int i=e.getButton();
                            if(i==3){
                                pop.show(e.getComponent(),e.getX(),e.getY());
                                
                            }
                        //}
                    }
                    public void mouseReleaseed(MouseEvent e){                        
                        //if(e.isPopupTrigger())
                            //pop.show(e.getComponent(),e.getX(),e.getY());
                    }
                });
        
    }
}
class TestAction extends AbstractAction{
    public TestAction(String title){
        super(title);
    }
    public void actionPerformed(ActionEvent e){
        System.out.println(this.getValue(Action.NAME)+"is selected");
    }
}


还有个问题就是怎么控制弹出式的菜单，大家看到了用了个MouseEvent.getButton() 
得到他是哪个鼠标按键来显示，但是按SDK中的方法，和其他的资料上有个 
public void mouseReleaseed(MouseEvent e){ 
if(e.isPopupTrigger()) pop.show(e.getComponent(),e.getX(),e.getY()); 
} 
大家看到我的源程序注释了这个语句。 
用上面的e.getButton()去判断，，来实现，， 
请问有更好的方法么，参考<<JAVA核心技术I>>资料上说的用e.isPopupTriger()方法来做，？ 
请指教