OOP4BeginnersProgram

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

namespace World1
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Nationality is {0}", Person.Nationality);
            Console.WriteLine("PI is {0}", Person.PI);
            Console.WriteLine("National Income {0}", Person.CalculateNationalIncome());
            // I. Structural approach
            // string[] personsName = new string[5];
            // string person1Name = "John";
            // int person1Age = 40;

            // string Preson2Name = "Stoyan";
            // int Person2Age = 52;

            // int counter = 0;

            // II. OOP approach
            Person person1 = new Person(52, "Stoyan");
            // counter++;
            // 1. Modeling with fields
            // person1.name = "Stoyan";
            // person1.age = 52;
            // 2. Modeling with Getter and Setter
            // person1.SetName("Name");
            // person1.SetAge(52);
            // 3. With properties
            // 4. Autoproperties
            // person1.Name = "Stoyan";
            // person1.Age = 52;

            Person person2 = new Person("John", 20, 12, "Stoyan", "Sean");
            // counter++;
            // person2.name = "John";
            // person2.age = 20;
            // person2.SetName("John");
            // person2.SetAge(20);
            // person2.Name = "John";
            // person2.Age = 20;

            // 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);

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

            // 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);

            DoSomethingElse();

            person1.IntroduceYourSelf();
            person2.IntroduceYourSelf();
            // Console.WriteLine("The population of my little kingdom is {0}", counter);
            Console.WriteLine("The population of my little kingdom is {0}", Person.Counter);
            Person.Nationality = "German";
            Console.WriteLine("The Johns friend on position 1 is {0}", person2[1]);

            // person1.onlyRead = 5.6;

            person1.IntroduceYourSelf();
            person2.IntroduceYourSelf();

            Console.WriteLine("National Income {0}", Person.CalculateNationalIncome());

            Student student1 = new Student("Kircho", 25, "dasd2342da");
            student1.IntroduceYourSelf();

            Athlete athlete1 = new Athlete("Kris", 27, "Box");
            athlete1.IntroduceYourSelf();

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

        static void DoSomethingElse()
        {
            Person person2 = new Person("John", 25);
        }
    }
}