using System;

public class Person

{

    public string Name { get; set; }

    public int Age { get; set; }

​

    public Person()

    {

​

    }

​

    public bool IsOlderThan50()

    {

        return Age > 50;

    }

}

​

public interface IEmployee

{

    double TotalSalary { get; set; }

    double CalculateMonthlySalary();

}

​

public class Employee : Person, IEmployee   //child employee can inherit from parent person and interface IEmployee - NEEDS TO BE IN THAT ORDER ALWAYS (parent, interface)

    {

    //Inherited Person's property

    //you don't have to write anything because it is a parent not an interface

​

    //Implement Employee's property     //must rewrite the properties and functions from the interface here

    public double TotalSalary { get; set; }

​

    // constructor

    public Employee()

    {

    }

​

    //Implement Employee's Function

    public double CalculateMonthlySalary()

    {

        return TotalSalary / 12;

    }

}

​

public class Program

{

    public static void Main()

    {

        Employee e1 = new Employee();

        e1.Name = "John";

        e1.Age = 19;

        e1.TotalSalary = 36000;

​

        Console.WriteLine("Is {0} older than 50? {1}", e1.Name, e1.IsOlderThan50());

        Console.WriteLine("{0}'s month salary equals to {1}", e1.Name, e1.CalculateMonthlySalary());

    }

}