Sort and IComparer<(Of <(TKey>)>)), : IComparer « Data Structure « C# / CSharp Tutorial

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C# / CSharp Tutorial » Data Structure » IComparer 
11.42.5.Sort and IComparer<(Of <(TKey>)>)),
using System;
using System.Collections.Generic;

public class ReverseComparer: IComparer<string>
{
    public int Compare(string x, string y)
    {
        return y.CompareTo(x);
    }
}

public class Example
{
    public static void Main()
    {
        string[] letters = {"A","B","E""C""F""G"  };

        int[] letterSizes = 405322118 };

        Console.WriteLine();
        for (int i = 0; i < letters.Length; i++)
        {
            Console.WriteLine("{0}: up to {1} meters long.", letters[i], letterSizes[i]);
        }

        Console.WriteLine("\nSort(letters, letterSizes)");
        Array.Sort(letters, letterSizes);

        for (int i = 0; i < letters.Length; i++)
        {
            Console.WriteLine("{0}: up to {1} meters long."
                letters[i], letterSizes[i]);
        }

        ReverseComparer rc = new ReverseComparer();
        Console.WriteLine("\nSort(letters, letterSizes, rc)");
        Array.Sort(letters, letterSizes, rc);

        for (int i = 0; i < letters.Length; i++)
        {
            Console.WriteLine("{0}: up to {1} meters long."
                letters[i], letterSizes[i]);
        }

        Console.WriteLine("\nSort(letters, letterSizes, 3, 3)");
        Array.Sort(letters, letterSizes, 33);
        for (int i = 0; i < letters.Length; i++)
        {
            Console.WriteLine("{0}: up to {1} meters long."
                letters[i], letterSizes[i]);
        }

        Console.WriteLine("\nSort(letters, letterSizes, 3, 3, rc)");
        Array.Sort(letters, letterSizes, 33, rc);
        for (int i = 0; i < letters.Length; i++)
        {
            Console.WriteLine("{0}: up to {1} meters long."
                letters[i], letterSizes[i]);
        }
    }
}
11.42.IComparer
11.42.1.Use IComparer
11.42.2.IComparer as a Property
11.42.3.Class with IComparable and IComparer
11.42.4.Implement IComparer to do the customized sorting
11.42.5.Sort and IComparer<(Of <(TKey>)>)),
11.42.6.Sort an Array using the default comparer and a custom comparer that reverses the sort order
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