C++ Assignment done in Java

This is the fish and shark simulation assignment for those who takes C++ assignment.
I just find this assignment interesting so I just done it.
Forgive me if its not well decorated i just want to watch it move around i guess.
Its so entertaining watching the sharks eat fishes and die because no more fish around.

Here is the screen dump:


Here is the .jar file

http://www.savefile.com/files/1565051

To open it, you save it to your pc, then via command prompt go to the directory where you save it and type:
java -jar fishSimulator.jar

Make sure you have jdk installed in your desktop (use college lab if you dont have jdk installed)

I guess there is an error occur when opening the file in uni open lab...
here is the print screen


but ~Nia~ can open it using BlueJ > File > Open Project > fishSimulation.jar

yes yes...cannot be opened by using cmd prompt..
my C++..............dying =.=""

Oh i'm so sorry.
The reason for that error is that I done this at my laptop which has different version of jdk from the school.
I'll upload the updated version ASAP. Meantime if you want to run the program, run BlueJ and load the .jar file into it then run the project. It should be working.
Cheers.