How to iterate through columns [rows] of a multi dimensional array

Question

I am using a multi-dimensional array to store the total amount of product sold (products range 1 to 5) by a particular salesperson (1 to 4 salespersons).

T arranged

Answer 1

First off, don't use all your code if it's not needed. You only need the declaration and maybe one for-loop.

Loop through columns:

for(int i=0; i