Function to calculate double a number

Create a C# program that implements a function called Double to calculate and return double an integer. You must first request the number from the user.

Input

4

Output

8

Solution

using System;
public class FunctionCalculateDouble
{
    public static void Main(string[] args)
    {
        int number = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine(Double(number));
    }

    public static int Double(int number)
    {
        return number + number;
    }
}