Java Right Click Menu

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Insets;
import java.awt.event.KeyEvent;
import java.awt.image.BufferedImage;

import javax.swing.JFrame;

public class Driver extends JFrame {
	boolean isRunning = true;
	int fps = 50;
	int windowWidth = 400;
	int windowHeight = 400;

	BufferedImage backBuffer;
	Insets insets;
	InputHandler input;

	int x = 0;
	int y = 0;

	static Driver myGame;

	public static void main(String[] args) {
		myGame = new Driver();
		myGame.run();
	}

	public void run() {
		initialize();

		while (isRunning) {
			long time = System.currentTimeMillis();

			update();
			draw();

			time = (1000 / fps) - (System.currentTimeMillis() - time);

			if (time > 0) {
				try {
					Thread.sleep(time);
				} catch (Exception e) {
				}
			}
		}

		setVisible(false);

	}

	void initialize() {
		setTitle("Game Tutorial");
		setSize(windowWidth, windowHeight);
		setResizable(false);
		setDefaultCloseOperation(EXIT_ON_CLOSE);
		setVisible(true);

		insets = getInsets();
		setSize(insets.left + windowWidth + insets.right, insets.top
				+ windowHeight + insets.bottom);

		backBuffer = new BufferedImage(windowWidth, windowHeight,
				BufferedImage.TYPE_INT_RGB);
		input = new InputHandler(this);

		myGame.addMouseListener(new PopClickListener());
	}

	void update() {
		if (input.isKeyDown(KeyEvent.VK_RIGHT)) {
			x += 20;
			try {
				Thread.sleep(100);
			} catch (Exception e) {
			}
		}
		if (input.isKeyDown(KeyEvent.VK_LEFT)) {
			x -= 20;
		}
		if (input.isKeyDown(KeyEvent.VK_DOWN)) {
			y += 20;
		}
		if (input.isKeyDown(KeyEvent.VK_UP)) {
			y -= 20;
		}
	}

	void draw() {

		Graphics g = getGraphics();

		Graphics bbg = backBuffer.getGraphics();

		bbg.setColor(Color.WHITE);
		bbg.fillRect(0, 0, windowWidth, windowHeight);

		bbg.setColor(Color.BLACK);
		bbg.drawOval(x, y, 20, 20);

		g.drawImage(backBuffer, insets.left, insets.top, this);

	}
}


import java.awt.Component;
import java.awt.event.*;

public class InputHandler implements KeyListener {
	boolean keys[] = new boolean[256];

	public InputHandler(Component c) {
		c.addKeyListener(this);
	}

	public boolean isKeyDown(int keyCode) {
		if (keyCode > 0 && keyCode < 256) {
			return keys[keyCode];
		}

		return false;
	}

	public void keyPressed(KeyEvent e) {
		if (e.getKeyCode() > 0 && e.getKeyCode() < 256) {
			keys[e.getKeyCode()] = true;
		}
	}

	public void keyReleased(KeyEvent e) {
		if (e.getKeyCode() > 0 && e.getKeyCode() < 256) {
			keys[e.getKeyCode()] = false;
		}
	}

	public void keyTyped(KeyEvent e) {
	}
}

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

class MenuActionListener implements ActionListener {
	public void actionPerformed(ActionEvent e) {
		System.out.println(e.getActionCommand());
	}
}


import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

class PopClickListener extends MouseAdapter {
	public void mousePressed(MouseEvent e) {
		if (e.isPopupTrigger()) {
			doPop(e);
		}
	}

	public void mouseReleased(MouseEvent e) {
		if (e.isPopupTrigger()) {
			doPop(e);
		}
	}

	private void doPop(MouseEvent e) {
		PopUpDemo menu = new PopUpDemo();
		menu.show(e.getComponent(), e.getX(), e.getY());
	}
}


import javax.swing.JMenuItem;
import javax.swing.JPopupMenu;

class PopUpDemo extends JPopupMenu {
	JMenuItem anItem;

	public PopUpDemo() {
		anItem = new JMenuItem("Click Me!");
		add(anItem);
		anItem.addActionListener(new MenuActionListener());
	}
}