urlify strings with/without regex (c#)

Program.cs

using System;
using System.Text.RegularExpressions;

namespace Urlify
{
    class Program
    {
        static void Main(string[] args)
        {
            var newString = "How to make pancakes     ";
            var trimmedString = newString.Trim();
            // without regex
            var replacedString = trimmedString.Replace(" ", "%20");
            Console.WriteLine(replacedString);

            // with regex
            var urlifiedString = Regex.Replace(trimmedString, @"\s+","%20");
            Console.WriteLine(urlifiedString);
        }
    }
}