[quote author=mn12833 link=topic=684.msg4401#msg4401 date=1244560969]
This is definitely the applet that I was looking for.  I am still having difficulty obtaining this file.  I am looking to use the app as is for educational purposes.  However, I am still having difficulty with the jar file.  Any suggestions?
[/quote]

Thanks for ur encouragement, Fu-Kwun Hwang made this, i merely remixed it to be more customized for self directed inquiry learning. :)

it is possible u need to install Java Runtime Environment [JRE] for running Easy Java Simulation jar files?
http://www.youtube.com/watch?v=b4jOQcXu_v8


It is likely your computer recognized jar file extension as a zip format ;)
install Java Runtime Environment [JRE] for your computer to associate the file extension appropriately