//import java.util.Scanner; class AddTwoMatrix{ public static void main(String args[]){ int[][] arr1={ {10,15,20}, {10,15,20}, {10,15,20}, }; int[][] arr2={ {10,20,30}, {10,20,30}, {10,20,30}, }; int[][] arr3=new int[3][3]; for(int row=0; row