Programowanie Zaawansowane #2

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace ConsoleApp13
{
    class Program
    {
        static void Main(string[] args)
        {
            Calendar c1 =  Calendar.getInstance();
            Calendar c2 =  Calendar.getInstance();

            Thread[] threads = new Thread[500];
            for(int i = 0; i < threads.Length; i++)
            {
                threads[i] = new Thread(createInstance);
                threads[i].Start();
            }

            Console.WriteLine(c1 == c2);
            Console.WriteLine(c1.Equals(c2));

            Console.ReadKey();
        }

        private static void createInstance()
        {
            Calendar c = Calendar.getInstance();
        }
    }



    class Calendar
    {
        private static Calendar instance = null;

        private Calendar()
        {

        }

        public static Calendar getInstance()
        {
            Thread.Sleep(new Random().Next(0, 1000));
            if(null == instance)
            {
                instance = new Calendar();
                Console.WriteLine("new Calendar();");
            }
            return instance;
        }
    }
}