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Class DopplerProgram.Doppler

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.Container
                   |
                   +----java.awt.Window
                           |
                           +----java.awt.Frame
                                   |
                                   +----DopplerProgram.Doppler

public class Doppler
extends Frame
implements Runnable, WindowListener, ActionListener

An applet that demonstrates Doppler properties. This java program has been written to run in both an applet and as a program. To run in an applet, create a "window opener" that will instantiate a new Frame class using Doppler as that class. Or simply run the program from the prompt using $java Doppler

inApplet
percentage

Doppler(Image, Image, boolean): Creates a new Doppler object with its buttons and stuff.

actionPerformed(ActionEvent): Method to implement ActionListener.
main(String[]): Method to invoke as a program.
paint(Graphics): Calls update to eliminate flashing
run(): starts the animation of applet and starts the Radiator thread.
start(): Overrides start to implement Runnable interface since it's an animation.
update(Graphics): Overrides update method to eliminate flashing
windowActivated(WindowEvent): Method to implement WindowListener.
windowClosed(WindowEvent): Method to implement WindowListener.
windowClosing(WindowEvent): Method to implement WindowListener to close window
windowDeactivated(WindowEvent): Method to implement WindowListener.
windowDeiconified(WindowEvent): Method to implement WindowListener.
windowIconified(WindowEvent): Method to implement WindowListener.
windowOpened(WindowEvent): Method to implement WindowListener.
writeName(Graphics, Dimension): Writes my name and current speed for galaxy

inApplet

 public boolean inApplet

percentage

 public int percentage

Doppler

 public Doppler(Image _earthImage,
                Image _galaxyImage,
                boolean _inApplet)

Creates a new Doppler object with its buttons and stuff.

start

 public void start()

Overrides start to implement Runnable interface since it's an animation. You know... if the universe extends a big bang object then the 4th dimension implements runnable too. Then it must have a start.

run

 public void run()

starts the animation of applet and starts the Radiator thread.

update

 public void update(Graphics g)

Overrides update method to eliminate flashing

Overrides:: update in class Container

writeName

 public void writeName(Graphics g,
                       Dimension d)

Writes my name and current speed for galaxy

paint

 public void paint(Graphics g)

Calls update to eliminate flashing

Overrides:: paint in class Container

actionPerformed

 public void actionPerformed(ActionEvent e)

Method to implement ActionListener. Listens for buttons and menu.

windowClosing

 public void windowClosing(WindowEvent e)

Method to implement WindowListener to close window

windowClosed

 public void windowClosed(WindowEvent e)