Write a method named box that returns a string representation of a two-dimensional array of int. The parameter is the number of rows (the number of columns is the same.) This square matrix should have all the elements 0 except the outside elements, which should be 1's. For example, box(4) should return {{1,1,1,1},{1,0,0,1},{1,0,0,1},{1,1,1,1}}. Create the array in this method, then use toString() to return the array as a string. You must cut and paste method toString() from the Hint.