Class Bouncer 

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.Container
                   |
                   +----java.awt.Panel
                           |
                           +----java.applet.Applet
                                   |
                                   +----Bouncer
public class Bouncer
extends Applet
implements Runnable
Controlling class to simulate a ball bouncing

Variable Index

o ball

Constructor Index

o Bouncer()

Method Index

o getDimension()
Accessor function just returns the width and height as a Dimension
o getHeight()
Accessor function just returns the height of the applet
o getWidth()
Accessor function just returns the width of the applet
o init()
Initialize the application.
o main(String[])
main just builds our Bouncer applet, and displays the applet in a frame that we resize to be the size of the bouncer applet, then starts the applet.
o mouseDown(Event, int, int)
Called when the mouse goes down. Deprecated.
o mouseDrag(Event, int, int)
Reset the ball to this position as the user drags it around. Deprecated.
o mouseUp(Event, int, int)
Called when the mouse goes up. Deprecated.
o paint(Graphics)
Draw the scene
o run()
Keep the ball(s) moving
o start()
Create a thread and make this thread's target the applet.
o stop()
Stop the ball from moving

Variables

o ball 
 public Ball ball

Constructors

o Bouncer 
 public Bouncer()

Methods

o init 
 public void init()
Initialize the application.

Overrides:
init in class Applet
o start 
 public void start()
Create a thread and make this thread's target the applet.

Overrides:
start in class Applet
o run 
 public void run()
Keep the ball(s) moving

o stop 
 public void stop()
Stop the ball from moving

Overrides:
stop in class Applet
o paint 
 public void paint(Graphics g)
Draw the scene

Overrides:
paint in class Container
o getWidth 
 public int getWidth()
Accessor function just returns the width of the applet

o getHeight 
 public int getHeight()
Accessor function just returns the height of the applet

o getDimension 
 public Dimension getDimension()
Accessor function just returns the width and height as a Dimension

o mouseDrag 
 public boolean mouseDrag(Event e,
                          int x,
                          int y)
Note: mouseDrag() is deprecated.

Reset the ball to this position as the user drags it around.

Overrides:
mouseDrag in class Component
o mouseDown 
 public boolean mouseDown(Event e,
                          int x,
                          int y)
Note: mouseDown() is deprecated.

Called when the mouse goes down. Stop moving

Overrides:
mouseDown in class Component
o mouseUp 
 public boolean mouseUp(Event e,
                        int x,
                        int y)
Note: mouseUp() is deprecated.

Called when the mouse goes up. Start moving again.

Overrides:
mouseUp in class Component
o main 
 public static void main(String args[])
main just builds our Bouncer applet, and displays the applet in a frame that we resize to be the size of the bouncer applet, then starts the applet. By providing this main method, we can invoke the applet by simply running "java Bouncer" (when Bouncer.class is in our $CLASSPATH). Without this main method, we'd have to use "appletviewer Bouncer.html" to run the applet. Bouncer.html: