CS 160

  	public void paint(Graphics g)
	{
	Graphics2D g2 = (Graphics2D)g;
        g.drawLine(20, 20, 100, 50);
        g.setColor(Color.green);
        g.setColor(Color.red);
        g.drawLine(20, 100, 100, 50);
        g.drawRect(0, 0, 20, 20);
        g.setColor(Color.blue);
        g.drawRect(20, 100, 50, 60);
	}

   
	public void paint(Graphics g)
	{
		
        g.drawLine(20, 20, 100, 50);
        g.setColor(Color.green);
        g.setColor(Color.red);
        g.drawLine(20, 100, 100, 50);
        g.drawRect(0, 0, 20, 20);
        g.setColor(Color.blue);
        g.drawRect(20, 100, 50, 60);
	}

• Things you might want to try to add to make your beauty even more interesting. Use a Image instance to put in a background image. Look up Image in the API.
• Use a while loop to create animation (while's are in chapter 6 one of the next topics we will be discussing).
• Put in a MouseListener to start an animation when the mouse is clicked in your Applet. You need to do four things to implement a simple MouseListener:
  1. First import the awt event package:

                import java.awt.event.*;  
             

  2. Next implement the MouseListener, add it to your class definition:

     public class MyApplet extends JApplet implements MouseListener

  3. Next in your init method start the MouseListeners listening to your applet for a mouse command.

             addMouseListener(this);
          

  4. Last include the MouseListener methods in your class. You can put them below your paint method. Each must be included. On this example I put a repaint call in the mouseClicked method, the rest of the methods do nothing, but you have to include all of them if you are implementing the MouseListener interface (you can also use any of them if you want). If the mouse is clicked in the Applet it calls repaint() which will then call paint. You can set an int flag that changes everytime the mouse is clicked to create animation. See example below.

         public void mousePressed(MouseEvent e) {
            repaint();
         }
     
         public void mouseReleased(MouseEvent e) {
            
         }
     
         public void mouseEntered(MouseEvent e) {
            
         }
     
         public void mouseExited(MouseEvent e) {
            
         }
     
         public void mouseClicked(MouseEvent e) {
           
         }
     

• Here is an example of a animation with a mouse click I just change the X and Y values call repaint() and then draw my rect with the new x and y paramters.