C# Collections Part 2: Hashtable

Hashtable:

• Key/Value combination. (Keys are user defined)
• Variable length
• Type independent

Code:

1. using System;  
2. using System.Collections.Generic;  
3. using System.Linq;  
4. using System.Text;  
5. using System.Threading.Tasks;  
6. using System.Collections;  
7.   
8. namespace hashTable  
9. {  
10.     class Program  
11.     {  
12.         static void Main(string[] args)  
13.         {  
14.             Hashtable ht = new Hashtable();  
15.             ht.Add("Eid",101);  
16.             ht.Add("Ename","Abdullah Al Hasan");  
17.             ht.Add("Email","sujanhasan38@gmail.com");  
18.             ht.Add("Dname","CSE");  
19.             print(ht);  
20.               
21.             Console.ReadLine();  
22.         }  
23.   
24.         public static void print(Hashtable htable)  
25.         {  
26.             foreach (var i in htable.Keys)  
27.             {  
28.                 Console.WriteLine(i+" : "+htable[i]);  
29.             }  
30.         }  
31.     }  
32. }