Loop diagonally through two dimensional array

Question

I wrote the following code to walk half the diagonals of an array:

String[][] b = [a,b,c]
               [d,e,f]
               [g,h,i];  

public void LoopD         


        

Answer 1

This is how:

int [][]mat = { {1,2,3},
                {4,5,6},
                {7,8,9},
};

int N=3;

for (int s=0; s-1; i--) {
        System.out.print(mat[i][s-i] + " ");
    }
    System.out.println();
}

for (int s=1; s=s; i--) {
        System.out.print(mat[i][s+N-1-i] + " ");
    }
    System.out.println();
}

The first loop prints the diagonals beginning from first column, the second loop prints the remaining diagonals (beginning from bottom row).

Output:

1 
4 2 
7 5 3 
8 6 
9