Question

How to create a comma delimited string from an ArrayList in C#

Answer 1

using System;
using System.Collections;

public class Program
{
    public static void Main(string[] args)
    {
        ArrayList al = new ArrayList(); 
        
        al.Add("c"); 
        al.Add("c++"); 
        al.Add("java"); 
        al.Add("python"); 
        al.Add("c#"); 

        string str = string.Join(", ", al.ToArray());
        
        Console.WriteLine(str);
        
    }
}

 
/*
run:
   
c, c++, java, python, c#
   
*/

 

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