Linq Query Can be Executed More than once

A linq Query can be executed more than once.

Source Code

using System.Linq;  
 using System;  
 namespace GroupJoin  
 {  
   class Program  
   {  
     public static void Main()  
     {  
       int[] number = { 101, 102, 103, 104, 105 };  
       var final = from num in number  
             where num > 102  
             select num;  
       foreach (var item in final)  
       {  
         Console.WriteLine(item);  
       }  
       number[1] = 200;  
       Console.WriteLine("----after---");  
       foreach (var item in final)  
       {  
         Console.WriteLine(item);  
       }  
       Console.ReadLine();  
     }  
   }  
 }  

Output

Debugging