using System;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        Dictionary<string, int> wordncount = new Dictionary<string, int>();

        wordncount.Add("this", 1);

        wordncount.Add("is", 2);

        wordncount.Add("my", 3);

        wordncount.Add("name", 4);

        Console.WriteLine();

        wordncount["khan"] = 7;

        foreach (KeyValuePair<string, int> KVP in wordncount)

        {

            Console.WriteLine("key: {0}   num: {1}", KVP.Key, KVP.Value);

        }

        Console.WriteLine();

        Console.WriteLine("value {0}",wordncount["khan"]);

    }

}