Create a popup menu

In the case you want to display a set of options once you have clicked a component, you may use a popup menu to show the options.

Lets say you have a JButton, when it is clicked, a menu will popup.

JButton popMenuButton = new JButton("Your Choices');
popMenuButton.addActionListener(new PopupListener());

JPopupMenu popMenu = new JPopupMenu();
JMenuItem choice1 = new JMenuItem();
JMenuItem choice2 = new JMenuItem();

private class PopupListener implements ActionListener {
      public void actionPerformed(ActionEvent e) {
            buildPopupMenu();
      }
}

private void buildPopupMenu() {
      popMenu.setLabel("Options");
   
      choice1.setText("Choice 1");
      choice1.setActionCommand("Choice 1");
      choice1.setMnemonic(1);
      choice1.addActionListener(new ChoiceListener());
      popMenu.add(choice1);

      choice2.setText("Choice 2");
      choice2.setActionCommand("Choice 2");
      choice2.setMnemonic(2);
      choice2.addActionListener(new ChoiceListener());
      popMenu.add(choice2);

      popMenu.setRequestFocusEnabled(true);
      popMenu.setBorderPainted(true);
      popMenu.show(popMenuButton, 5, -60);
}

private class ChoiceListener implements ActionListener {
      public void actionPerformed(ActionEvent e) {
            popMenu.setVisible(false);
            Object obj = e.getSource();
            if (obj == choice1) {
                  //Display result of choice 1
           } else if (obj == choice2) {
                 //Display result of choice 2
           }
      }
}

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