C Sharp 2000 things - Item 136 - Sorting an Array of Values Based on an Array of Keys

CSharp2000things_Item136.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Item136_Sort
{
    /// <summary>
    /// C# 2000 things
    /// #136 – Sorting an Array of Values Based on an Array of Keys
    /// https://csharp.2000things.com/2010/10/31/136-sorting-an-array-of-values-based-on-an-array-of-keys/
    /// You can use the Array.Sort method to sort two arrays at the same time.  The values of one array are 
    /// used as the keys to determine the sort order and the values of the second array are just changed to 
    /// match the sequence of the first array.
    /// 
    /// Array.Sort takes two arrays.  The first is an array of keys, dictating how the elements will be sorted.  
    /// The second will just be reordered to match the sequence of the first array.
    /// </summary>
    class Program
    {
        static void Main(string[] args)
        {
            string[] titles = { 
                    "Pride and Prejudice", 
                    "Moby-Dick", 
                    "A Tale of Two Cities",
                    "Anna Karenina", 
                    "Fahrenheit 451" };

            string[] firstWords = {
                    "It is a truth universally acknowledged",
                    "Call me Ishmael",
                    "It was the best of times",
                    "All happy families are alike",
                    "It was a pleasure to burn" };

            Array.Sort(titles, firstWords);   // Sort by title
        }
    }
}