How do I call dispose() on a JMenuItem?

Question

I'm trying to write code so that when a user clicks the 'File' tab and selects 'Exit', it exits the whole window I've built.

I am trying to use the dispose(); method, but it gives me the error "The method dispose() is undefined for the type new ActionListener()"

Heres the code

public static void addLayouts(){

        frame = new JFrame();
        frame.setSize(600, 600);
        frame.setTitle("IPFinder");
        GroupLayout groupLayout = new GroupLayout(frame.getContentPane());
        groupLayout.setHorizontalGroup(
            groupLayout.createParallelGroup(Alignment.LEADING)
                .addGap(0, 384, Short.MAX_VALUE)
        );
        groupLayout.setVerticalGroup(
            groupLayout.createParallelGroup(Alignment.LEADING)
                .addGap(0, 362, Short.MAX_VALUE)
        );
        frame.getContentPane().setLayout(groupLayout);

        JMenuBar menuBar = new JMenuBar();
        frame.setJMenuBar(menuBar);

        JMenu mnFile = new JMenu("File");
        menuBar.add(mnFile);



        JMenu mnEdit = new JMenu("Edit");
        menuBar.add(mnEdit);

        JMenuItem mntmCopyResults = new JMenuItem("Copy Results");
        mnEdit.add(mntmCopyResults);

        JMenu mnAbout = new JMenu("About");
        menuBar.add(mnAbout);

        JMenuItem mntmAboutIpfinder = new JMenuItem("About IPFinder");
        mnAbout.add(mntmAboutIpfinder);
        frame.setVisible(true);



        JMenuItem mntmExit = new JMenuItem("Exit");
        mntmExit.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                dispose();
            }
        });
        mnFile.add(mntmExit);


    }

I speant about 2 hours on google trying to figure it but i can't get it to work.

I've exhausted all my options at this point so I came here. Any help is apreciated.

Answer 1

dispose() should be called on JFrame or JDialog, and not on ActionListener.

but it gives me the error "The method dispose() is undefined for the type new ActionListener()"

Exactly. ActionListener has only one method actionPerformed(). http://docs.oracle.com/javase/6/docs/api/java/awt/event/ActionListener.html