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

Got it:) Bit of a headwreck trying to visualise the array but got there eventually, cheers for the help

//loop thorugh each column to get total products sold
    for (int product = 0; product < salesTotals[0].length; product++) {
        int totalProduct = 0;
        for (int salePerson = 0; salePerson < salesTotals.length; salePerson++) {

            totalProduct += salesTotals[salePerson][product];

        }//end inner for
        System.out.printf("%10d", totalProduct);

    }//end outer for