This document provides a step-by-step guide on adding a file menu to a Java program, specifically using Swing. It outlines the main method that initializes the menu and describes how to create a menu bar with a 'file' menu and an 'exit' menu item, including setting up action event handling. Additionally, it details the implementation of a listener to respond to menu item clicks.

1. How do i add a file menu to my java program?
Solution
Here goes the step by step guide to add a file menu to your program
*Your main method which initializes another method 'showMenuDemo' should look like this
public static void main(String[] args){
SwingMenuDemo swingMenuDemo = new SwingMenuDemo();
swingMenuDemo.showMenuDemo();
}
*The showMenuDemo will create a menubar with menu ‘file’ and one of the file item observed
from your code is 'exit' is also implemented.
private void showMenuDemo(){
//create a menu bar
menuBar = new JMenuBar();
//create menus
fileMenu = new JMenu("File");
//create menu items
exitItem = new JMenuItem("Exit");
exitItem.setActionCommand("Exit");
MenuItemListener menuItemListener = new MenuItemListener();
exitMenuItem.addActionListener(menuItemListener);
//add menu items to menus
fileMenu.add(exitMenuItem);
//add menu to menubar
menuBar.add(fileMenu);
//add menubar to the frame
mainFrame.setJMenuBar(menuBar);
mainFrame.setVisible(true);
}
*we will initialize the variables since all the variables required for implementing this
functionality are already declared in the class 'TheaterWindow '
*You can implement the action event on clicking the exit menu using the below function

2. class MenuItemListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
statusLabel.setText(e.getActionCommand()
+ " JMenuItem clicked.");
}
}