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Yep. That looks like it'd work.

Which is the first println? The one in makeGrid? How many lines does it print? Add a separate counter variable and print that with the rects value:
System.out.println("cntr=" + cntr++ + " "...

Did you look at the 100 lines of print outs?
Did it look like there were different rectangles?
What was the difference between one rectange and the next one?