java program Add Two Array ( Matrices )
import java.util.Scanner; public class AR2 {
 public static void main(String[] args) {
   Scanner na = new Scanner(System.in);
   int arr [] [] = new int
[3][3];
   int arr1[][]=new int[3][3];
   int arr2[][]=new int[3][3];
   System.out.println("enter 1st matrix" );
   for (int i=0;i<3;i++){
       for (int j=0;j<3;j++){
          arr1[i][j]=na.nextInt();
       }
   }
   for (int i=0;i<3;i++){
       for (int j=0;j<3;j++){
          System.out.print(arr1[i][j]+"\t");
       }
       System.out.println();
       System.out.println();
   }
 System.out.println("enter 2nd matrix" );
   for (int i=0;i<3;i++){
       for (int j=0;j<3;j++){
          arr2[i][j]=na.nextInt();
       }
   }
   for (int i=0;i<3;i++){
       for (int j=0;j<3;j++){
          System.out.print(arr2[i][j]+"\t");
       }
       System.out.println();
       System.out.println();
   }
   System.out.println("Add matrix" );
   for (int i=0;i<3;i++){
       for (int j=0;j<3;j++){
       arr [i][j] = arr1[i][j] + arr2[i][j];
          System.out.print(arr[i][j]+"\t");
 }
       System.out.println();
   }
 }
 }
 
 
 
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