C # Hash Table (Hashtable)

The Hashtable class represents a series of key/value pairs that are organized by key-based hash codes. He uses keys to access the elements in the collection.

Using system;using system.collections;namespace collectionsapplication{   class program   {      static void Main (string[] args)      {         Hashtable ht = new Hashtable ();         Ht. ADD ("001", "Zara Ali");         Ht. ADD ("002", "Abida Rehman");         Ht. ADD ("003", "Joe Holzner");         Ht. ADD ("004", "Mausam Benazir Nur");         Ht. ADD ("005", "M. Amlan");         Ht. ADD ("006", "M. Arif");         Ht. ADD ("007", "Ritesh Saikia");         if (HT. Containsvalue ("Nuha Ali"))         {            Console.WriteLine ("This student name was already in the list");         }         else         {            ht. ADD ("008", "Nuha Ali");         }         Gets the collection of keys          ICollection key = Ht. Keys;         foreach (string k in key)         {            Console.WriteLine (k + ":" + ht[k]);         }         Console.readkey ();}}}   

C # Hash Table (Hashtable)