Anonymous

import java.awt.*;import java.awt.event.*;import javax.swing.*;import javax.swing.event.*;public class myJPanel extends JPanel implements ActionListener, KeyListener{	private Timer shotTimer;	private int delay=100;	private int shipX=0;	private int shipY=530;	private int shotX=-20;	private int shotY=530;	private Color myColor = Color.BLUE;	JButton b;    	public myJPanel()	{		super();				//create the timer.		shotTimer = new Timer(delay, this);	    shotTimer.addActionListener(this);			setLayout(new BorderLayout());		        		b = new JButton("");		b.addKeyListener(this);	    b.requestFocusInWindow();	    		//create the new panel, and add the buttons        JPanel colorPanel = new JPanel();                //keys		colorPanel.add(b);                //add to the panel        add(colorPanel, BorderLayout.SOUTH);	}	/*****************	 * Paint	 *****************/	public void paintComponent(Graphics g) 	{				super.paintComponent(g);				g.setColor(Color.red);    	g.fillOval(shotX, shotY, 10, 10);    			g.setColor(myColor);    	g.fillRect(shipX,shipY,15, 5);	}		/***********************	 * Regular Actions	 ***********************/	public void actionPerformed(ActionEvent event)     {		Object obj = event.getSource();				if(obj == shotTimer)     	{				//check if the ball has reached the top. if so break the timer			if(shotY>=550)			{				shotX = 0;			    shotY = 530;			    repaint();				shotTimer.stop();			}						shotY-=10;		    repaint();     	}	}			public void keyPressed(KeyEvent e) 	{		int x = e.getKeyCode();				//left arrow		if(x ==  e.VK_LEFT) 	    {			if (shipX>=10)				shipX-=10;	    	repaint();	    }				//Right arrow		if(x ==  e.VK_RIGHT) 	    {			if (shipX<=460)				shipX+=10;	    	repaint();	    }	   	    //Space	    if(x ==  e.VK_SPACE) 	    {	    	shotX = shipX;	    	shotTimer.start();	    }	}		public void keyReleased(KeyEvent e) {  }	public void keyTyped(KeyEvent e) {  }}