LASA_crossbarCalc The first line of your solution should be:
    int[][] arr = {row1, row2, row3, row4, row5, row6};

A method takes a 2D array as input. A crossbar is in an array is a portion shaped like this:

a b c
  d
e f g

For example, if we create a crossbar with the number 1 within an array full of zeros, it may look like this:

1 1 1 0 0 0
0 1 0 0 0 0
1 1 1 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0

Actually, there are many crossbars in the array above. The three leftmost crossbars are the following:
1 1 1  1 1 0   1 0 0
  1        0        0
1 1 1   1 1 0  1 0 0

The sum of a crossbar is the sum of all the numbers within it. The sum for the crossbar above is 7, 4, and 2, respectively.

In this problem, you have to calculate the largest sum among all the crossbars in the array.