using System;

using System.Threading;

​

namespace ThreadsPlayground

{

    public class Program

    {

        public static void Main()

        {

            int numberOfThreads = 10;

            var threads = new Thread[numberOfThreads];

            var counter = new Counter();

            for (int i = 0; i < threads.Length; i++)

            {

                var newThread = new Thread(counter.Worker) { Name = i.ToString() };

                threads[i] = newThread;

                newThread.Start();

            }

            // Not mandatory

            foreach (var thread in threads)

            {

                thread.Join();

            }

        }

    }

​

    public class Counter

    {

        private int _count;

        public object Locker { get; set; }

        public int MaxCount { get; set; }

​

        public Counter()

        {

            Locker = new object();

            MaxCount = 1000;

        }

​

        public void Worker()

        {

            bool running = true;

            while (running)

            {

                lock (Locker)

                {

                    if (Count < MaxCount)

                    {

                        Count++;

                        Console.WriteLine("Thread[{0}] count after: {1}", Thread.CurrentThread.Name, Count);

                    }

                    else

                    {

                        running = false;

                    }

                }

            }

        }

​

        public int Count

        {

            get

            {

                lock (Locker)

                {

                    return _count;

                }

            }

            set

            {

                lock (Locker)

                {

                    _count = value;

                }

            }

        }

    }

}