1 // Outer loop to print each of the rows
2 for (int row = 1; row <= size; row++) { // row = 1, 2, 3, ..., size
3 // Inner loop to print each of the columns of a particular row
4 for (int col = 1; col <= size; col++) { // col = 1, 2, 3, ..., size
5 if ((row % 2) == 0) { // row 2, 4, 6, ...
6 ......
7 }
8 System.out.print( ...... ); // Use print() without newline inside the inner loop
9 ......
10 }
11 // Print a newline after printing all the columns
12 System.out.println();
13 }