Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;

import javax.swing.JButton;
import javax.swing.JFrame;

public class Main {

    public static void main(String args[]) {
        JButton jbtnA = new JButton("java2s.com");

        JFrame jfrm = new JFrame();
        jfrm.setSize(300, 300);

        jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        jfrm.getRootPane().setDefaultButton(jbtnA);

        jbtnA.setMnemonic(KeyEvent.VK_A);

        jbtnA.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent ae) {
                System.out.println("Alpha pressed. Beta is enabled.");
                jbtnA.setEnabled(!jbtnA.isEnabled());
            }
        });
        jfrm.add(jbtnA);
        jfrm.setVisible(true);
    }
}