Use No math class PLEASE

7) Write a method that will accept a 2D array and return a 2D array in reverse column major order. (8 points) int[][]g={9,8,7,6},{5,4,2,1},{3,9,2,3}};reverseColMajor(g){{3,2,9,3},{1,2,4,5},{6,7,8,9}}; mat. length >0 and mat []. length >0 //preconditions: public static int [][] reverseColMajor(int [][] mat ) \{