CMIS 141

JLabel JTextField JButton ActionListener


Change the RandomWalk program so that it uses the above instead of a
JOptionPane to get its input.
Basically, copy and paste the incantations from the RandomLines
program into the RandomWalk program.

Constrain the "walker" so it doesn't leave the applet area.





Change the RandomLines program:
Add a JLabel and JTextField that lets the user indicate whether random
colors should be used for each line.
To change the drawing color to a random color, use this:
  g.setColor(new Color((int)(Math.random()*256),
	               (int)(Math.random()*256),
		       (int)(Math.random()*256)));
which creates a new Color object with random ints between 0 and 255 as
the red, green and blue components.


To the RandomLines program:
Add another widget to allow the user to specify a minimum length of
each line.




To the RandomWalk program:
Slow down the walking by inserting this incantation in the loop in
paint:  it pauses the program for sleepDelay milliseconds.

try {
   Thread.sleep(sleepDelay);
}
catch (InterruptedException e) {
}


Add another widget to the RandomWalk program to input the value of
sleepDelay.