public static void Vykonej()
        {
            VolatileKeyWord vkw = new VolatileKeyWord();
            Thread          th  = new Thread(() => PomocnaMetoda(vkw));

            th.Name = "sekundarni";
            th.Start();
            Thread.Sleep(20);
            vkw.ukazatel = false;
            Console.WriteLine("krok 2");
        }
        public static void PomocnaMetoda(object inst)
        {
            VolatileKeyWord vkw = (VolatileKeyWord)inst;

            Console.WriteLine("krok 1");
            while (vkw.ukazatel)
            {
                Console.WriteLine(Thread.CurrentThread.Name);
            }
            Console.WriteLine("krok 3");
            Console.ReadKey();
        }