Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JCheckBoxMenuItem;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;

public class Main extends JFrame {
    JCheckBoxMenuItem check = new JCheckBoxMenuItem("Check");

    public Main() {
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JMenuBar bar = new JMenuBar();
        JMenu menu = new JMenu("Checkable");
        bar.add(menu);
        menu.add(check);

        check.addItemListener(new ItemListener() {
            public void itemStateChanged(ItemEvent e) {
                System.out.println("Checked? " + check.isSelected());
            }
        });

        setJMenuBar(bar);
        getContentPane().add(new JLabel("A placeholder"));

        pack();
        setSize(300, 300);
        setVisible(true);
    }

    public static void main(String arg[]) {
        new Main();
    }
}