🚀 go-pugleaf

Hello, all!

I trying to create JPopup menu with submenu in applet window.

My question is: how can I open the submenu from my menu?
Can anybody send me a simple example with popupMenu + submenu that user can
bring up by pressing the right mouse button.

My code look like this:
    JPopupMenu main_menu = new JPopupMenu();
    JMenuItem item  = new JMenuItem("Item");
    main_menu.add(item);
    JPopupMenu sub_menu = new JPopupMenu();
    JMenuItem sub_item  = new JMenuItem("Sub_Item");
    sub_menu.add(sub_item);

    item.addMouseListener(new java.awt.event.MouseAdapter() {
      public void mouseEntered(MouseEvent e) {
          sub_menu.show(e.getComponent(),e.getX(),e.getY());
      }
    });