import javax.swing.*;
import javax.imageio.ImageIO;
import java.awt.Color;
import java.awt.Font;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.io.File;
import java.io.IOException;

public class BackgroundImageWithJFrameAndButton implements ActionListener
{
	public static void main(String[] args)
	{
		// Create an instance of the 'BackgroundImageWithJFrameAndButton' class
		new BackgroundImageWithJFrameAndButton();
	}

	// Constructor
	public BackgroundImageWithJFrameAndButton()
	{
		// Create an instance of a JFrame
		JFrame frame = new JFrame();

		// Allow objects to be placed anywhere on the JFrame
		frame.setLayout(null);

		// Allow the JFrame to be closed via the "X"
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		// Set the JFrame size and title
		frame.setSize(500, 250);
		frame.setTitle("Demo:  JFrame with Background Image and Button");

		// Set the JFrame background color; note that this background
		//  color will not be visible if the background image (below)
		//  is visible
		frame.getContentPane().setBackground(Color.BLACK);

		// Set the JFrame background image
		try
		{
			frame.setContentPane(new JLabel(new ImageIcon(ImageIO.read(new File("data_files/space.gif")))));
			System.out.println();
		}
		catch (IOException error)
		{
			System.out.println("ERROR:  " + error.getMessage());
		}

		// Position the JFrame in the center of the screen
		frame.setLocationRelativeTo(null);

		// Don't let the JFrame be resized
		frame.setResizable(false);

		// Create and set up a JButton
		JButton button = new JButton("Quit Program");
		button.setFont(new Font("Arial", Font.BOLD, 18));
		button.setForeground(Color.BLUE);
		button.setSize(150, 35);
		button.setLocation(334, 180);
		button.setFocusable(true); // Allow this button to have the focus
		button.setVisible(true);

		// Allow the button to respond to being pressed
		button.addActionListener(this);

		// Add the JButton to the JFrame
		frame.add(button);

		// Make the JFrame (and everything on it) visible
		frame.setVisible(true);
	}

	public void actionPerformed(ActionEvent e)
	{
		// See if the EXIT button was clicked
		if (e.getActionCommand() == "Quit Program")
			System.exit(0);
	}
}