Question

How to check if specific key exist in Hashtable in C#

Answer 1

using System;
using System.Collections; 
                      
public class Program
{
    public static void Main()
    {
 		Hashtable ht = new Hashtable(); 
  
        ht.Add("c", "c#"); 
        ht.Add("a", "c++"); 
        ht.Add("d", "java"); 
        ht.Add("e", "c");         
		ht.Add("b", "php"); 
		
        Console.WriteLine(ht.Contains("a")); 
        Console.WriteLine(ht.Contains("z")); 
    }
}
  



/*
run:
  
True
False
  
*/

 

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