Matrix Multiplication in java

 package javaCodes;

import java.util.Scanner;

public class matrix_multiplication {

public static int[][] multiplication(int arr[][], int arr1[][], int size)

{

int[][] array = new int[3][3];

for(int i=0; i<size; i++)

{

for(int j=0; j<size; j++)

{

for(int k=0; k<size; k++)

{

array[i][j] += arr[i][k]*arr1[k][j];

}

}

}

return array;

}

public static void main(String args[])

{

int[][] arr = new int[3][3];

int[][] arr1 = new int[3][3];

int[][] arr2 = new int[3][3];

Scanner sc = new Scanner(System.in);

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

{

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

{

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

arr1[i][j] = sc.nextInt();

}

}

arr2 = multiplication(arr, arr1, 3);

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

{

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

{

System.out.print(arr2[i][j]+"    ");

}

System.out.println("\n");

}

}

}