17. program for matrix addition in java

import java.util.*;

class array4

{

            public static void main(String args[])

            {

                        int i,j;

                        int matrix1[][]=new int[3][3];       //Declaration

                        int matrix2[][]=new int[3][3];

                        int matrix3[][]=new int[3][3];

                        Scanner sc=new Scanner(System.in);

                        System.out.println("Enter 1st matrix:");

                        for(i=0;i<3;i++)

                        {

                                    for(j=0;j<3;j++)

                                    {

                                                matrix1[i][j]=sc.nextInt();

                                    }

                        }

                        System.out.println("Enter 2nd matrix:");

                        for(i=0;i<3;i++)

                        {

                                    for(j=0;j<3;j++)

                                    {

                                                matrix2[i][j]=sc.nextInt();

                                    }

                        }

                        for(i=0;i<3;i++)

                        {

                                    for(j=0;j<3;j++)

                                    {

                                                matrix3[i][j]=matrix1[i][j]+matrix2[i][j];

                                    }

                        }

                        System.out.println();          //Display first matrix

                        System.out.println("First matrix is:");

                        for(i=0;i<3;i++)

                        {

                                    for(j=0;j<3;j++)

                                    {

                                                System.out.print(" "+matrix1[i][j]);

                                    }

                                    System.out.println();

                        }

                                                       //Display second matrix

                        System.out.println();

                        System.out.println("Second matrix is:");

                        for(i=0;i<3;i++)

                        {

                                    for(j=0;j<3;j++)

                                    {

                                                System.out.print(" "+matrix2[i][j]);

                                    }

                                    System.out.println();

                        }

                                                      //Display third matrix

                        System.out.println();

                        System.out.println("Third matrix is:");

                        for(i=0;i<3;i++)

                        {

                                    for(j=0;j<3;j++)

                                    {

                                                System.out.print(" "+matrix3[i][j]);

                                    }

                                    System.out.println();

                        }

            }

}