using System; using System.Collections.Generic; using System.Linq; using System.Threading; using System.Threading.Tasks; namespace ParallelTest {     class ParallelTest     {         private static int Timed_Message(String arg_Message, int arg_Interval)         {             for (int i = 0; i < 10; i++)             {                 Console.WriteLine("Source {0} - Cycle {1} for Interval {2}", arg_Message, i, arg_Interval);                 Thread.Sleep(1000 * arg_Interval);             }             Console.WriteLine("{0} - Complete", arg_Message);             return 0;         }         static void Main(string[] args)         {             int RetCode = 0;             Task RedistributionTask = new Task(() => RetCode = Timed_Message("Five ", 4));             RedistributionTask.Start();             Task AltRedistributionTask = new Task(() => RetCode = Timed_Message("Three ", 2));             AltRedistributionTask.Start();             //Timed_Message("Main", 6);             // wait for input before exiting             Console.WriteLine("Press enter to finish after both [Complete] messages appear.");             Console.ReadLine();         }     } }

Press enter to finish after both [Complete] messages appear. Source Five  - Cycle 0 for Interval 4 Source Three  - Cycle 0 for Interval 2 Source Three  - Cycle 1 for Interval 2 Source Five  - Cycle 1 for Interval 4 Source Three  - Cycle 2 for Interval 2 Source Three  - Cycle 3 for Interval 2 Source Five  - Cycle 2 for Interval 4 Source Three  - Cycle 4 for Interval 2 Source Three  - Cycle 5 for Interval 2 Source Five  - Cycle 3 for Interval 4 Source Three  - Cycle 6 for Interval 2 Source Three  - Cycle 7 for Interval 2 Source Five  - Cycle 4 for Interval 4 Source Three  - Cycle 8 for Interval 2 Source Three  - Cycle 9 for Interval 2 Source Five  - Cycle 5 for Interval 4 Three  - Complete Source Five  - Cycle 6 for Interval 4 Source Five  - Cycle 7 for Interval 4 Source Five  - Cycle 8 for Interval 4 Source Five  - Cycle 9 for Interval 4 Five  - Complete