One array expect another array : Except « LINQ « C# / CSharp Tutorial

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

public class MainClass{
   public static void Main(){
            int[] numbers = {1, 2, 3, 4};
            int[] numbers2 = {1, 1, 3, 3};
            Console.Write(numbers.Except(numbers2));
   }
}

22.39.Except
	22.39.1.	Create the Except query
	22.39.2.	One array expect another array
	22.39.3.	Use Except to print numbers that are in one integer array, but not another
	22.39.4.	Use Except to print the first character of product names that aren't also the first character of customer names.
	22.39.5.	Except Prototype
	22.39.6.	Set Operators: Except