*   2-d arrays in C++

*   ..really, just an array of arrays!

const int NUM_ROWS = 4;
const int NUM_COLS = 3;

char initials[NUM_ROWS][NUM_COLS];

(or in general: type name[SIZE_of_1st_dim][SIZE_of_2nd_dim]; )

    *   then initials[0][0] is the leftmost top element in the
        array

	initials[0][1] is the element in the middle of the
        first row of the array,

        ...
        initials[3][2] is the element on the rightmost bottom
        of the array

*   nested loops --- loops inside loops!

    ...and a nested loop would be dandy for operating
       on everything in a 2-d array;

    a for loop in a for loop would be great for filling in initials!

    see: fill_2_d.cpp

*   an example that USES many of these array functions
    we've developed in a single program: update.cpp

    (which uses get_file_contents,
                show_indexed_contents,
                request_changes,
                sum_contents2, and
                put_contents)