Dynamical adding MenuItem with references

Question

I have x ports in my computer. I woud like to add to menu any device is plug into and recive user input for listener. I wrote:

private void portSelectItem(){

    JMenu port=new JMenu("Port");

    String[] portTab= SerialIO.listPorts();

    for(String s : portTab){                    

        port.add(new JCheckBoxMenuItem(s));

    }

}

With way I generate dynamical x references and add listener in this ports?

Answer 1

1) setActionCommand(String portTab)

2) you can add to JCheckBoxMenuItem

• ActionListener

• ChangeListener

• ItemListener

• Action

• most complex way is add EventHandler, which fired event and could be compare in String value

3) each of Listeners returns Object fired select/deselect event, and this Object returns getActionCommand(String portTab) if is defined

Answer 2

Check Swing menus tutorial. Here is an example:

ButtonGroup buttonGroup = new ButtonGroup();
for(String s : portTab){                    
    JCheckBoxMenuItem checkBoxMenuItem = new JCheckBoxMenuItem();  
    checkBoxMenuItem.setText(s);
    buttonGroup.add(checkBoxMenuItem);
    checkBoxMenuItem.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {
            //TODO 
        }
    });         
}