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Double, reference parameters

 Saturday, April 06, 2013 published by Exercises C#
Proposed exercise

Create a function named "Double" to calculate the double of an integer number, and modify the data passed as an argument. It must be a "void" function and you must use "refererence parameters". For example. 

x = 5;
Double(ref x);

would display 10



using System;
public class F_DoubleRef
public static void Double(ref int n)
n = n + n;

public static void Main()
int x = 2;

Double( ref x );
Console.WriteLine( x );