C#_OOP_1b_Program.cs

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);
            Console.WriteLine("Only for read = {0}", Human.onlyRead);
            // counter++;

            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";

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

            IncreasePopulation();
            IncreasePopulation();

            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);
        }
    }
}