static void Main(string[] args) { int noOfTimes = 1; string stringTimes = string.Empty; do { Console.WriteLine("Please select (N) number of times the event handler get registered : "); stringTimes = Console.ReadLine(); }while (!int.TryParse(stringTimes, out noOfTimes)); Publisher publisher = new Publisher(); Subscriber subscriber1 = new Subscriber(noOfTimes, publisher); Console.WriteLine("Main before Calling publisher Save() method"); publisher.Save(); Console.WriteLine("Main After Calling publisher Save() method"); Console.ReadLine(); }