Question

How to add Hashtable Keys to ArrayList in C#

Answer 1

using System;
using System.Collections;

namespace ConsoleApplication_C_Sharp
{
    class Program
    {
        static void Main(string[] args)
        {
            Hashtable hashtable = new Hashtable();

            hashtable.Add(100, "c#");
            hashtable.Add(101, "c");
            hashtable.Add(102, "c++");
            hashtable.Add(107, "java");

            ArrayList arrayList = new ArrayList(hashtable.Keys);
            foreach (int key in arrayList)
                Console.WriteLine(key);
        }
    }
}


/*
run:
     
107
102
101
100
 
*/

 

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