using System;

using System.Collections;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

     Manager manager = new Manager();

          manager.Name = "Manager";

          manager.Salary = 10000;

          manager.DisplayDetails();

          manager.CalculateBonus();

          Developer developer = new Developer();

          developer.Name = "Developer";

          developer.Salary = 30000;

          developer.DisplayDetails();

          developer.CalculateBonus();

          // Use of polimorphism - Both manager and developer have same type

          List<Employee> employees = new List<Employee> {manager, developer };

          foreach(Employee employee in employees){

            employee.DisplayDetails(); // same method for both due to polymorphism

            employee.CalculateBonus(); // override method for each employee type

          }

    }   

    // Use of abstraction

    public abstract class Employee{

      // Use of encapsulation private properties with public

      private string name;

      private double salary;

      public string Name {get {return name;}set {name = value;}}

      public double Salary {get {return salary;}set {salary = value;}}

    // Use of abstract method with no body

      public abstract void CalculateBonus();

      public void DisplayDetails(){

        Console.WriteLine($"Name {name} Salary {salary}");

      }

    }

    // Use of inheritance

    public class Manager: Employee {

      public override void CalculateBonus(){

        double bonus = Salary * 0.2;

        Console.WriteLine($"Bonus {bonus}");

      }

    }

    public class Developer: Employee {

      public override void CalculateBonus(){

        double bonus = Salary * 0.1;

        Console.WriteLine($"Bonus {bonus}");

      }

    }

}