2d array iration java code example
Example 1: How to create a 2d array in java
int[][] arr = new int[m][n];
Example 2: accessing 2d array in java
(n x m matrix) - (3 x 2 matrix)
m n ------------------ >
| a[0][0] a[0][1] a[0][2]
v a[1][0] a[1][1] a[0][2]