C#_OOP_Features_Program

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

namespace App1b
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine(Human.PI);
            // int counter = 0;

            Human person1 = new Human("Stoyan", 50, Human.BrainSize.Normal);
            Console.WriteLine("Only for read = {0}", Human.onlyRead);
            // counter++;

            person1.onIntroduceYourSelf = delegate(string message) {
                Console.WriteLine("This guy trys to introduce him self {0} again hahaha", message);
            };

            person1.onIntroduceYourSelf = delegate(string message)
            {
                Console.WriteLine("Nasheto momche pak se predstawi {0}", message);
            };

            Human person2 = new Human(20, "Ivan", "Petko", "Niki");
            // counter++;

            Human person3 = new Human();
            // counter++;

            // Console.WriteLine("My name is {0}. I am {1} years old", person1.Name, person1.Age);
            // Console.WriteLine("My name is {0}. I am {1} years old", person2.Name, person2.Age);

            Human.Nationality = "German";

            // Human.Brain brain = new Human.Brain();

            person1.IntroduceYourSelf("dummy");
            person2.IntroduceYourSelf();
            Console.WriteLine("And my best friend is {0}", person2.GetFriend(0));
            person3.IntroduceYourSelf();

            IncreasePopulation();
            IncreasePopulation();

            Student student1 = new Student();
            // student1.Name = "Student1";
            // student1.Age = 18;
            Athelete athlete1 = new Athelete("Krisko", 20, "box" );

            Executor exec1 = new Executor(athlete1);
            exec1.MakeHimSpeak();


            // Athelete athlete1 = new Athelete();
            // athlete1.IntroduceYourSelf();
            // athlete1.ShowFNumber();
            // athlete1.ShowSport();


            Console.WriteLine(Days.Friday);
            Console.WriteLine((int)Days.Friday);
            Console.WriteLine(Days.Friday is Days);

            Manager<Student> manager = new Manager<Student>();
            // manager.AddStudent(student1);
            // manager.AddStudent(student1);
            // manager.RemoveStudent();
            manager.AddEntity(student1);
            manager.AddEntity(student1);
            manager.RemoveEntity();
            Console.WriteLine("I am managing {0} students", manager.GetNumberOfEntities());

            var autoPerson = new AutoHuman { Name = "Stooyan", Age= 32 };
            // autoPerson.Name = "Stoyan";
            // autoPerson.Age = 32;

            // List<AutoHuman> people = new List<AutoHuman>();
            // people.Add(autoPerson);
            List<AutoHuman> people = new List<AutoHuman>() {
                new AutoHuman { Name = "Scott", Age = 43 }, // read only properties
                new AutoHuman { Name = "Susan", Age = 15 },
                new AutoHuman { Name = "Ivan", Age = 16 },
                new AutoHuman { Name = "Peter", Age = 16 }
            };

            foreach (AutoHuman person in people)
            {
                Console.WriteLine(person.Name);
            }

            var anonymousPerson = new { Name = "Nikolay", Age = 22, Sex = "male" };
            var anonymousArray = new[] { new { Name = "Stoyan", Age = 51 }, new { Name = "Stoyan", Age = 34 } }; // new { Type = "Product1", Price = 34.56}

            DelegateTest.Test();
            // DelegateTest delagateTest = new DelegateTest();
            // delagateTest.Test();

            string email = "dadsa@fsdf.com"; //
            Console.WriteLine("This string is a valid e-mail = {0}", email.IsValidEmailAddress());

            var result = from p in people
                         where p.Name.StartsWith("S")
                         orderby p.Age descending
                         select new { p.Name, p.Age, sex = 2 };

            foreach (var personI in result) {
                Console.WriteLine("Found {0} {1}", personI.Name, personI.Age);
            }

            Console.WriteLine("My population is {0}", Human.counter);

            Console.WriteLine("The National Income is {0}", Human.CalculateNationalIncome());

            Console.WriteLine("Hello World!");
            /*
            string input = Console.ReadLine();
            Console.WriteLine(input);
            try
            {
                int validated = Int16.Parse(input);
                Console.WriteLine("Sled parsing chisloto e {0}", validated);
            }
            catch (Exception e)
            {
                Console.WriteLine("Error");
            }
           */
            Console.Read();
        }

        public static void IncreasePopulation()
        {
            Human person1 = new Human("Pesho", 15, Human.BrainSize.Large);
        }

        public enum Days {
            Monday, Tuesday, Wednesday, Thursday, Friday = 400, Saturday, Sunday
        }
    }
}