Dictionaries_LINQ_Lambda_PhoneBook

/*
 * Created by SharpDevelop.
 * User: DVasilev
 * Date: 2017/06/13
 * Time: 11:29 AM
 *
 * To change this template use Tools | Options | Coding | Edit Standard Headers.
 */
using System;
using System.Linq;
using System.Collections.Generic;


namespace Phonebook
{
    class Program
    {
        public static void Main(string[] args)
        {
            //Console.WriteLine("Hello World!");
            Dictionary<string, string> phoneDetails = new Dictionary<string, string>();

            List<string> commands = Console.ReadLine().Split(' ').ToList();
            string token = commands[0];
            if (commands[0] == "END")
            {
                return;
            }
            else
            {
                while (commands[0] != "END")
                {
                    switch (commands[0])
                    {
                        case"A":
                            string index = commands[1];
                            string entry = commands[2];
                            phoneDetails.Add(index,entry);
                        break;
                        case"S":
                            string searched  = commands[1];
                            string result = null;
                            if (phoneDetails.TryGetValue(searched, out result))
                            {
                                Console.WriteLine("{0} -> {1}", searched,result);
                            }
                            else
                            {
                                Console.WriteLine("Contact {0} does not exist.",searched);
                            }
                        break;
                    }
                }
            }
            Console.Write("Press any key to continue . . . ");
            Console.ReadKey(true);
        }
    }
}