Comments on: Exercise 6-1b: while loop

By: Anonymous

Anonymous — Tue, 18 Oct 2011 02:26:00 +0000

w starts at the value 200 which is not less than 0. Therefore the boolean returns false and the loop is bypassed.

By: AhAdel

AhAdel — Mon, 10 Oct 2011 22:07:00 +0000

sorry, the loop that didn’t executed : while (w<= 200) {
why ??

By: AhAdel

AhAdel — Mon, 10 Oct 2011 22:05:00 +0000

this loop argument didn’t executed : while (w<=0) {
why ??

By: Anonymous

Anonymous — Thu, 06 Oct 2011 14:33:00 +0000

‘w’ is simply a variable that starts at 200 and decrements by 20 each cycle through the loop (200,180,160,140,etc.). Since it’s a number it can be used for anything. And here it is used to (a) define the size of each circle and (b) the fill color. A greyscale color in Processing has a range between 0 and 255 (0 being black and 255 white).

By: Guipena

Guipena — Thu, 06 Oct 2011 07:23:00 +0000

Could you explain how you defined the different colors using “fill(w)”?