using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
//csc List_FindAll1.cs
namespace ConsoleApplication1
{
    
    class Program
    {
        static void Main(string[] args)
        {
            List<string> eList = new List<string>();
            
            eList.Add("AD"); eList.Add("B"); eList.Add("AB");
            eList.Add("C"); eList.Add("D"); eList.Add("AD");
            eList.Add("E");
            int n1 = eList.Count(); 
            eList.Sort();
            //Copies the entire List<T> to a compatible one-dimensional array, 
            //starting at the specified index of the target array
            String[] eList2 = new String[eList.Count()];
            eList.CopyTo(eList2,0);
            Console.WriteLine("Reading List"); 
            readT(eList);
            Console.WriteLine("Feeding string array : CopyTo"); 
            foreach(string str in eList2)
            {
                Console.WriteLine(str); 
            }
            List<string> b = eList.FindAll(s => s == "AD");
            IEnumerable c = b;
            Console.WriteLine("eList.FindAll(s => s =="+ "AD"); 
            foreach (Object str1 in c)
            {
                Console.WriteLine(str1);
            }
          
            Console.ReadLine();
        }
        static void readT(IList<string> list)
        {
            //notice that the list is passed an IList and hence can handle both types of lists
            //Use IEnumerable
            foreach (string val in list)
            {
             Console.WriteLine(val); 
            }      

         }
            
            
        }
    }