using System;

​

public class Employee

{

public class EmployeeTax

    {

    public int id;

    public string name;

    public string gender;

    public DateTime dob;

    public int salary;

    public decimal Tax;

      // Declare a Id property of type int:

      public int Id {

         get {

            return id;

         }

         set {

            id = value;

         }

      }

      // Declare a Name property of type string:

      public string Name {

         get {

            return name;

         }

         set {

            name = value;

         }

      }

      // Declare a Gender property of type string:

      public string Gender {

         get {

            return gender;

         }

         set {

            gender = value;

         }

      }

    // Declare a Dob property of type datetime:

      public DateTime Dob {

         get {

            return dob;

         }

         set {

            dob = value;

         }

      }

    // Declare a Salary property of type int:

      public int Salary {

         get {

            return salary;

         }

         set {

            salary = value;

         }

      }

        public virtual void CalculateTax()

        {

            Console.WriteLine("Tax :",Tax);

        }

}

​

public class EmployeeTaxCalculator:EmployeeTax

    {

        public override void CalculateTax()

        {

            if(gender == "M")

    {

        if(dob.Year <= 1990)

        {

            Tax = salary/10;

        }

        else

        {

            Tax = salary/20;

        }

    }

    else if(gender == "F")

    {

        if(dob.Year <= 1990)

        {

            Tax = salary/5;

        }

        else

        {

            Tax = salary/15;

        }

    }

​

             Console.WriteLine("Employee " + name + " Tax is : " + Tax);

        }

    }

    public static void Main()

    {

        /* Testing Polymorphism */

            EmployeeTax empTax = new EmployeeTax();

            empTax = new EmployeeTaxCalculator();

            /* Polymorphic Objects */

            /* creating Array with Different types of Objects */

            empTax.id = 123;

            empTax.name = "Pradeep";

            empTax.gender = "M";

        string iDate = "05/05/2005";

        DateTime oDate = Convert.ToDateTime(iDate);

            empTax.dob = oDate;

            empTax.salary = 32000;

        empTax.CalculateTax();

    }

}