How to create a drop-up menu in java swing

Question

I've tried searching for quite some time now, but I guess either I'm unable to find the exact keyword or there is no solution available.

I want to create a menu in the footer of my JFrame, such that on clicking, it drops-up unlike normal menus that drops-down

On what exactly I mean by drop-up, please see a similar menu in css -http://www.cssplay.co.uk/menus/final_pullup.html

Answer 1

One possibility is using buttons with JPopupMenu. The menu location can be specified when showing the menu:

menu.show(parentComponent, 0, -menu.getPreferredSize().height);

would place the menu above parentComponent like in the link.

Answer 2

Here is the sample code for others who stumble upon this question :

JPopupMenu popupMenu = new JPopupMenu();

        JMenuItem mnuNew = new JMenuItem("New");
        popupMenu.add(mnuNew);
        JMenuItem mnuOpen = new JMenuItem("Open");
        popupMenu.add(mnuOpen);
        JMenuItem mnuClose = new JMenuItem("Close");
        popupMenu.add(mnuClose);

        JButton btnMenu = new JButton("Popup");
        btnMenu.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                popupMenu.show(btnMenu, 0, -popupMenu.getPreferredSize().height);
            }
        });