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RE: jSimpleBug: SimpleSwarmBug3
From: |
Hu, Jianjun |
Subject: |
RE: jSimpleBug: SimpleSwarmBug3 |
Date: |
Thu, 28 Mar 2002 11:42:58 -0500 |
Hi,
you get a null pointer exceptions at this file line 34.
Just check what's that and find out the problem
Jianjun
StartSimpleBug.java:34
-----Original Message-----
From: address@hidden
[mailto:address@hidden Behalf Of Duncan Robertson
Sent: Friday, June 28, 2002 10:12 AM
To: address@hidden
Subject: jSimpleBug: SimpleSwarmBug3
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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==================================
Swarm-Support is for discussion of the technical details of the day
to day usage of Swarm. For list administration needs (esp.
[un]subscribing), please send a message to <address@hidden>
with "help" in the body of the message.