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Wow, I'm dumb, Java = Zero based, so sales[ product -1] [ person -1 ] simply sets the value entered to the correct element in the array... Right?

I think that's right at least.

In an exercise in my book, I've come across an example that doesn't go too far into explaining a section of the code. I don't know what it's called so I'm having a tough time finding it. Here's a...