The interface to this applet should have a single button -- perhaps labeled "expand grid". When the applet starts, it should be empty except for the button. Hit the button once and lines should appear that bisect the space into a 2x2 grid. Hit the button again and you get a 3x3 grid. Again and you get a 4x4 grid. Etc.

Use showStatus (described in lab 5) to show the number of grid lines in the status line of the applet.

When everything is working, hit the button about 50 times. The line adding behavior at this point might become a little strange. If you do not see anything strange (which is fine), go to my reference implementation at http://bubo.brynmawr.edu/~gtowell/hw4.html hit the button about 70 times. Describe the behavior and account for it. Describe how you might change the program to eliminate the problem.

Here are some example images from my reference implementation.

after 2 button hits

After 11 button hits

• A printout of the code for your applet. (See instructions on the class website for getting a good looking printout)
• Two printouts of the applet, One with less than 5 grid lines and one with more than 10. See directions on the class website for obtaining printouts of your applet and printing them on a single sheet of paper.
• The URL of the HTML page containing your applet
• Less than 1 page containing the following:
  • a description of what happened to line addition in the reference implementation when the number of button clicks exceeded 50;
  • speculation about why this happened
  • a suggestion of at least 1 way in which this issue could be fixed (based upon your speculation about the problem).
  • After 151 (or so) button clicks in the reference implementation you stop seeing lines and just get a solid black area. Why? Is there anything that you can do to change this?

Notes

int appX = (int) getSize().getWidth();
int appY = (int) getSize().getHeight();

Extra Credit