Write a program to perform 3X3 matrix addition.

class MatrixAdd

{

 public static void main(String arg[])

 {

  int a[][]= new int[3][3];

  int b[][] = new int[3][3];

  int c[][]= new int[3][3];

  int i,j,k=0;

  for(i=0;i<3;i++)

  {

   for(j=0;j<3;j++)

   {                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   

    a[i][j]=k;

     k++;

    b[i][j]=k;

   }

  }

  System.out.println("1st mat. is");

  for(i=0;i<3;i++)

  {

   for(j=0;j<3;j++)

    {

     System.out.print("  " +a[i][j]);

    }

     System.out.println("\n");

   }

   System.out.println("2nd mat. is");

  for(i=0;i<3;i++)

  {

   for(j=0;j<3;j++)

    {

     System.out.print("  " +b[i][j]);

    }

     System.out.println("\n");

   }

  System.out.println("addtn is");

 for(i=0;i<3;i++)

  {

   for(j=0;j<3;j++)

   {                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   

    c[i][j]=a[i][j]+b[i][j];

   }

  }

   for(i=0;i<3;i++)

  {

   for(j=0;j<3;j++)

    {

     System.out.print("  " +c[i][j]);

    }

     System.out.println("\n");

   }

 }

}