Question

menuBar = new JMenuBar();
// File Menu
JMenu fileMenu = new JMenu("File");
menuBar.add(fileMenu);
// File->New
JMenuItem newMenuItem = new JMenuItem("New");
frame.setJMenuBar(menuBar);
newMenuItem.addMouseListener(new MouseAdapter() {
    @Override
    public void mousePressed(MouseEvent arg0) {
        btnExample.setText("Clicked");
        btnExample.doClick();
    //---------->SOME HOW TO EXECUTE btnExample<---------//
}
});
fileMenu.add(newMenuItem);

final JButton btnExample = new JButton("SD");
frame.getContentPane().add(btnExample, "cell 4 0,growx,aligny top");
btnExample.addMouseListener(new MouseAdapter() {
    @Override
    public void mouseClicked(MouseEvent arg0) {
    spinnerForVar.setValue(4);//default value for spinner
    spinnerForFunc.setValue(4);//default value for spinner
    ...             
  }
});

Hello! I hope someone can help me. Here it is the problem: I have Menu item “New” and have button btnExample. I want the following: When i click on “File->New” it executes btnExample. My code is able only to change the button title and show visual affect of clicking. But how can I actually execute it?

Answer 1

I have only one advice – don’t do that. Don’t bind GUI components in this way.

If you want two components to execute the same operation, simply pack this operation in a method and call the method from both components.

Also, use ActionListener – are you sure the user is going to press it using mouse and not keyboard? what if you add shortcuts to those buttons/components?