HiLo game

**HiLo game -** 12-10-2008, 08:32 PM

I have students writing a simple HiLo game where they generate a random number from 1 to 100 and then some object tries to guess it. Sometimes when the guess is equal to the number and the two are compared in a while loop (while guess != number) the loop keeps going and the bject says too high or too low. How can I remedy this situation?

12-11-2008, 06:11 PM

The random number generator occasionally doesn't generate an integer even when it is supposed to (a bug listed in the official bug list). This doesn't always happen (in one class I know of, for a specific program only about 4 people out of 20 had a problem) so it can be very discouraging to debug.

The fix is to basically multipy the result from the random number generator by 1.0 before making the test - for more detail do a forum search or look at the bug list on the Alice home page.

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	#1 (permalink)
rmille2 Guest Status: Posts: n/a	HiLo game - 12-10-2008, 08:32 PM I have students writing a simple HiLo game where they generate a random number from 1 to 100 and then some object tries to guess it. Sometimes when the guess is equal to the number and the two are compared in a while loop (while guess != number) the loop keeps going and the bject says too high or too low. How can I remedy this situation?

	#2 (permalink)
DrJim Guest Status: Posts: n/a	12-11-2008, 06:11 PM The random number generator occasionally doesn't generate an integer even when it is supposed to (a bug listed in the official bug list). This doesn't always happen (in one class I know of, for a specific program only about 4 people out of 20 had a problem) so it can be very discouraging to debug. The fix is to basically multipy the result from the random number generator by 1.0 before making the test - for more detail do a forum search or look at the bug list on the Alice home page.