How to use Threads in C# to perform multiple operations simultaneously

This example shows how to use threads in C#, to perform multiple operations simultaneously.

Code:

using System;
using System.Threading;

namespace ConsoleApplications
{
    class ThreadDemo
    {
        static void Main(string[] args)
        {
            // Create a main thread
            Thread mainThread = Thread.CurrentThread;
            mainThread.Name = "Main thread";

            // Create a second thread
            ThreadStart workerStart1 = new ThreadStart(PrintDot);
            Thread workerThread1 = new Thread(workerStart1);
            workerThread1.Name = "Worker thread (DOT)";
            workerThread1.Start();

            // Create a third thread
            ThreadStart workerStart2 = new ThreadStart(PrintLine);
            Thread workerThread2 = new Thread(workerStart2);
            workerThread2.Name = "Worker thread (LINE)";
            workerThread2.Start();

            PrintLetters();
            Console.WriteLine("The main thread has finished executing");
        }

        /// <summary>
        /// This method, print X 10000 times
        /// </summary>
        static void PrintLetters()
        {
            for (int n = 0; n < 10000; n++)
                    Console.Write(" X ");
        }

        /// <summary>
        /// This method, print . 10000 times
        /// </summary>
        static void PrintDot()
        {
            for(int n=0; n<10000; n++)
                Console.Write(" . ");
            Console.WriteLine("The worker thread has finished executing");
        }

        /// <summary>
        /// This method, print - 10000 times
        /// </summary>
        static void PrintLine()
        {
            for (int n = 0; n < 10000; n++)
                Console.Write(" - ");
            Console.WriteLine("The worker thread has finished executing");
        }
    }
}

Note: The three methods will be run "simultaneously" in separate threads. The time it takes for each Thread is variable.