HashTable Class in C#

In this article we will discuss about the HashTable Collection Class available in C#.
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In this Collection Class it stores the item as key-value pairs. In it each item of the table is uniquely identify by the key and the key should be unique and value can be same or duplicate. The HashTable stores the key and value pair as the object type which is capable of storing any kind of value whether it is string, integer or long etc. The collection of the key and value pair can be retrieved from from HashTable using Keys and Pairs property. Through DictionaryEntry Class we can fetch key+value pair at a time.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Collections;


namespace ConsoleApplication13


    class Program


        static void Main(string[] args)


            Hashtable ht = new Hashtable();


            ht.Add(2, "Aman");

            ht.Add(3, "Rahul");

            ht.Add(4, "Swati");

            ht.Add(5, "Kirti");


            foreach (DictionaryEntry de in ht)


                Console.WriteLine("Key is:"+de.Key.ToString()+"value is:"+de.Value.ToString());









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