Program for Matrix Multiplication

/*  Program for Matrix Multiplication */

class ThreeDArray
{
    public static void main(String args[ ])
    {
        int a[][][]={ { {5,0,2}, {0,0,9}, {4,1,0}, {7,7,7}},
                                 { {3,0,0}, {8,5,0}, {0,0,0}, {2,0,9}}
                               };
        int count = 0;

        for (int i = 0; i < 2; i++)
                  for (int j= 0; j < 4; j++)
                         for (int k = 0; k < 3; k++)
                                     if (a[i][j][k]==0)   
                         ++count;

        System.out.println("This Array has "+count+" zeros.");
    }
}