C# Language Simple Complete Threading Demo using Tasks

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Example

class Program
{
    static void Main(string[] args)
    {
        // Run 2 Tasks.  
        var task1 = Task.Run(() => PerformAction(1)));
        var task2 = Task.Run(() => PerformAction(2)));

        // Wait (i.e. block this thread) until both Tasks are complete.
        Task.WaitAll(new [] { task1, task2 });
        
        Console.WriteLine("Done");
        Console.ReadKey();
    }

    // Simple method to help demonstrate the threads running in parallel.
    static void PerformAction(int id)
    {
        var rnd = new Random(id);
        for (int i = 0; i < 100; i++)
        {
            Console.WriteLine("Task: {0}: {1}", id, i);
            Thread.Sleep(rnd.Next(0, 1000));
        }
    }
}
Starting a thread with parameters