product of digits in a number

Question

I want to print the the product of digits in a number using the following code. Plz view the following code and find me the error in it and help me to solve it in 2 different ways using static method and also in general manner using do while loop in the main method

 

 

namespace Prime2

{

class ProdOfDigits

{

public static double evalulate(double no)

{

if (no == 0) return 0;

double temp = 1;

do

{

temp = (no % 10) * temp;

no = no / 10;

} while (no > 0);

return temp;

}

static void Main(string[] args)

{

double num,rem,temp=1;

Console.WriteLine("Enter the Number to find the Product of Digits ");

num = double.Parse(Console.ReadLine());

/* do

{

// rem = num % 10;

//temp = rem * temp;

temp = (num % 10) * temp;

num = num / 10;

} while (num>0);*/

/*if (rem==0)

Console.WriteLine("Product of Digits in Number is Zero");*/

Console.WriteLine("Product of Digits in Number is {0}", ProdOfDigits.evalulate(num));

}

}

}