Problem and Congratulations
charleshixsn at earthlink.net
Wed Apr 10 20:44:18 UTC 2002
The congrats won't make much sense until after the problem:
I was running the BankAccount tutorial on a Win95 system. Everything
was working fine up until I got to the statement:
b historyMorph openInWorld.
At this point, these blue bars showed up at the left hand side of the
screen. And Squeak hung.
I couldn't get out without using the Task Manager (Ctrl-Alt-Del).
The congratulations are because ONLY Squeak hung. I left it running for
an hour while I did other things, and the computer never froze. On
Win95. That truly rates congratulations.
My guess as to the problem:
one of the deposits into the bank account was:
b deposit: 10 factorial. (or perhaps it was 100).
I also withdrew 17 a few times.
Based on the difference observed in the heights of the bars, my guess is
that the bar chart must have been a mile high or so. Perhaps Squeak
kept trying to draw it? I do know that my computer slowed down
remarkably for the longest time. So perhaps that's what was going on.
Then I tried to drag the bars around a few times, so even if it
finished drawing the graph once, it would just have needed to start
drawing it all over again.
Request: How do I break a Squeak program caught in this kind of loop?
In this case killing the program didn't cause me any harm, but in other
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