using System;

using System.Threading;

using System.Threading.Tasks;

​

namespace LISTING_1_16_Continuation_options

{

    public class Program

    {

        public static void HelloTask()

        {

            Thread.Sleep(1000);

            throw new Exception("Fail");

            Console.WriteLine("Hello");

        }

​

        public static void WorldTask()

        {

            Thread.Sleep(1000);

            Console.WriteLine("World");

        }

​

        public static void ExceptionTask()

        {

            Console.WriteLine("Exception thrown");

        }

​

        public static void Main(string[] args)

        {

            Task task = Task.Run(() => HelloTask());

​

            task.ContinueWith((prevTask) => WorldTask(), TaskContinuationOptions.OnlyOnRanToCompletion);

            task.ContinueWith((prevTask) => ExceptionTask(), TaskContinuationOptions.OnlyOnFaulted);

​

            Console.WriteLine("Finished processing. Press a key to end.");

            Thread.Sleep(5000);

        }

    }

}