Print numbers in a matrix

I’m playing around with 2D arrays and I’m trying to print random numbers in a 3 X 5 matrix. So far this is what I have:

class 2DArray{

   public static void main(String[] args){

   int[][] array = new int[3][5];
   double randnum = Math.random();
   
   for(int i=0; i<array.length; i++)
   {

      for(int j=0; j<array[i].length; j++)
      {   
         System.out.print("  " + i);
         System.out.println("  " + j);
      }
   }
}
}

I’m having trouble getting it to print in matrix form. Can anyone help me out?