Given a two dimensional square matrix int[][] arr of size n x n where n could be any integer greater than 1, develop the following methods:

1. public void columnMins(int [] [] arr) that prints the minimum value in each column, comma separated on a single line.

Example: If the matrix is

3	2	5
1	0	4
5	6	7

then rowSums() method will print 10, 5, 18 and columnMins() will print 1,0,4

For testing purposes, you may initialize the matrix with values from a formula such as the ones we discussed in class, e.g., arr[i][j] = i+j;