BasicInheritance.cs

using System;
using System.Dynamic;

/* Basic Inheritance
 * 
 * C# Supports only single class inheritance
 * Multi-level class inheritance is possible
 * C# supports multiple interface inheritance
 * The Child class is a specialization of the base class
 * Base classes are automatically instantiated before the derived classes
 * The Parent Class constructor executes before the Child Class constructor
 * 
 */


namespace BasicInheritance
{
    public class Employee
    {
        //public fields are BAD PRACTICE. good practice involves exposing private fields to the public using properties
        public string FirstName;
        public string LastName;
        public string Email;

        public void PrintFullNAme()
        {
            Console.WriteLine(FirstName + " " + LastName); 
        }
    }

    public class FullTimeEmployee : Employee
    {
        public float YearlySalary;
    }

    public class PartTimeEmployee : Employee
    {
        public float HourlyRate;
    }
    
    class Program
    {
        static void Main(string[] args)
        {
            //initilizing with assignment statements
            FullTimeEmployee fullTimeEmployee = new FullTimeEmployee(); //explicit
            fullTimeEmployee.FirstName = "Salary";
            fullTimeEmployee.LastName = "Man";
            fullTimeEmployee.YearlySalary = 5000000;
            fullTimeEmployee.PrintFullNAme();

            //initilizing with object initilizer 
            var partTimeEmployee = new PartTimeEmployee {FirstName = "Wage", LastName = "Earner", HourlyRate = 25}; //more implicit-- var can be used to for initilizations, and the nice and neat shorthand
            partTimeEmployee.PrintFullNAme();

            Console.ReadKey();


        }

    }
}