It says not to add no other public functions, but I was confused in if you wanted a main method in our Array2D class because you wanted us to demonstrate ALL functinality of our code. Do we make a Main Class that we dont turn in just for our own use, or do we make a main method within the class?

"Your main method which should demonstrate ALL functionality of your code.

• Please note, I will have my own main method that I will test your code with (no you may not see this code ahead of time). 
• Mostly I will be checking that each function does what it is supposed to do.  I will also make sure that I can traverse each row and column using pointer hopping."