Main.java Source code

Introduction

Here is the source code for Main.java

Source

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

public class Main extends JFrame {
    JPanel contentPane = new JPanel();
    JButton fullscreenButton = new JButton("Fullscreen Mode");
    boolean fullScreen = false;
    int PrevX, PrevY, PrevWidth, PrevHeight;

    public static void main(String[] args) {
        Main frame = new Main();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(600, 500);
        frame.setVisible(true);
    }

    public Main() {
        setContentPane(contentPane);

        fullscreenButton.addActionListener(e -> {
            if (fullScreen == false) {
                PrevX = getX();
                PrevY = getY();
                PrevWidth = getWidth();
                PrevHeight = getHeight();
                dispose();
                setUndecorated(true);
                setBounds(0, 0, getToolkit().getScreenSize().width, getToolkit().getScreenSize().height);
                setVisible(true);
                fullScreen = true;
            } else {
                setVisible(true);
                setBounds(PrevX, PrevY, PrevWidth, PrevHeight);
                dispose();
                setUndecorated(false);
                setVisible(true);
                fullScreen = false;
            }
        });
        contentPane.add(fullscreenButton);
        fullscreenButton.setVisible(true);
    }
}