Array.FindAll : Array Exist Find « Data Structure « C# / CSharp Tutorial

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C# / CSharp Tutorial » Data Structure » Array Exist Find 
11.14.5.Array.FindAll
using System;

public class Example
{
    public static void Main()
    {
        string[] letters = "E","B""A""Z""D","X",  "Y""Q" };

        Console.WriteLine();
        foreach(string letter in letters)
        {
            Console.WriteLine(letter);
        }

        Console.WriteLine("\nArray.FindAll(letters, EndsWithS):");
        string[] subArray = Array.FindAll(letters, EndsWithS);

        foreach(string letter in subArray)
        {
            Console.WriteLine(letter);
        }
    }
    private static bool EndsWithS(String s)
    {
        if ((s.Length > 5&& 
            (s.Substring(s.Length - 6).ToLower() == "s"))
        {
            return true;
        }
        else
        {
            return false;
        }
    }
}
11.14.Array Exist Find
11.14.1.Demonstrate Predicate delegate
11.14.2.Use Array.Exists to check if a certain element exist
11.14.3.Use Array.Find to find array elements end with s
11.14.4.Use Array.FindLast to find the string element ends with s
11.14.5.Array.FindAll
11.14.6.All three generic overloads of the Array.IndexOf method.
11.14.7.Array.LastIndexOf demo
11.14.8.Using Array.TrueForAll for testing if array elements all end with string s
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