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jSimpleBug: SimpleSwarmBug3
From: |
Duncan Robertson |
Subject: |
jSimpleBug: SimpleSwarmBug3 |
Date: |
Fri, 28 Jun 2002 17:55:49 +0100 |
Dear All
I am trying to work through Charles Staelin's 'jSimpleBug' tutorial, which I
found at
http://eco83.econ.unito.it/swarm/materiale/jtutorial/JavaTutorial.zip. I am
having problems with the SimpleSwarmBug3 program. The java files compile
correctly, but when StartSimpleBug is run, the following error is produced:
'java.lang.NullPointerException
at StartSimpleBug.main(StartSimpleBug.java:34)
Exception in thread "main" '
Has anyone else experienced similar problems? Any ideas what I may be doing
wrong? The examples up until SimpleSwarmBug3 have worked correctly, and I
have downloaded the files directly from the above .zip file, so I doubt it
is a transcription problem.
Any help would be much appreciated,
Duncan Robertson
Said Business School, University of Oxford
Christ Church, Oxford OX1 1DP
Telephone: (Office) 01865 288 968
(Mobile) 07967 973 002
http://www.duncanrobertson.com/
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