using System;

using System.Timers;

​

namespace ConsoleApp3

{

    internal class Program

    {

        static void Main(string[] args)

        {

            System.Timers.Timer aTimer = new System.Timers.Timer();

            aTimer.Elapsed += new ElapsedEventHandler(OnTimedEvent);

            aTimer.Interval = 2000;

            aTimer.Enabled = true;

​

​

            Console.WriteLine("Press \'q\' to quit the sample.");

            while (Console.Read() != 'q') ;

        }

​

        private static void OnTimedEvent(object sender, ElapsedEventArgs e)

        {

            Console.WriteLine("Hello World");

        }

    }

}