Java JMenuItem在第二个menuItem之后添加边框

Question

I was trying to add some menu and wondering how can I add a border after the second menuItem

Just like this

Image Here

here is my code

jmb = new JMenuBar();
jmb.setPreferredSize(new Dimension(43,30));

jmMenu = new JMenu("Menu");
jmSettings = new JMenu("Settings");

jmiMenu = new JMenuItem("Add User"); 
jmiMenu.addActionListener(new ActionListener(){
    public void actionPerformed(ActionEvent e)
    {
        System.out.print("Rod click menuItem");
    }
});
jmiMenu.setPreferredSize(new Dimension(200,25));
jmiExit = new JMenuItem("Exit");
jmiExit.addActionListener(new ActionListener(){
    public void actionPerformed(ActionEvent e)
    {
        System.out.print("Rod click exit");
    }
});

jmb.add(jmMenu);
jmb.add(jmSettings);

jmMenu.add(jmiMenu);
jmMenu.add(jmiExit);

add(jmb);

Answer 1

That is not a border, that is called a "separator" within the menus. Add this after the 2nd menuitem

    jmMenu.addSeparator();

That will put the line across the menus, and will give you the output as in the image.