java program to multiply 2D Array

import java.util.*;

public class Multiply2DArray {
public static void main(String[] args) {
int arr1[][]={{1,2,3},{4,5,6},{7,8,9}};
int arr2[][]={{1,2,3},{4,5,6},{7,8,9}};
int multiplicationarr[][]=new int[3][3];
for(int i=0;i<3;i++)
{
for(int j=0;j<3;j++)
{
for(int k=0;k<3;k++)
{
multiplicationarr[i][j]+=arr1[i][k]*arr2[k][j];
}
}
}
for(int i=0;i<3;i++)
{
for(int j=0;j<3;j++)
{
System.out.print(multiplicationarr[i][j]+" ");
}
System.out.println();
}
}
}