Function double Learn programming C#

Lesson:

Functions

Exercise:

Function double

Objetive:

Create a function named "Double" to calculate and return an integer number doubled. For example. Double(7) should return 14.

Code:

using System;
public class exercise104
{
    public static int Double(int number)
    {
        return number * 2;
    }

    public static void Main()
    {
        Console.Write("Enter a number: ");
        int number = Convert.ToInt32(Console.ReadLine());
        Console.WriteLine("Double of {0} is {1}", number, Double(number));
    }
}