Inheriting from classes

The Person type we created earlier implicitly derived (inherited) from System.Object. Now, we will create a class that inherits from Person:

1. Add a new class named Employee to the PacktLibrary project.
2. Modify its statements, as shown in the following code:

   using System; 
   namespace Packt.Shared 
   { 
     public class Employee : Person 
     { 
     } 
   }
   

3. Add statements to the Main method to create an instance of the Employee class, as shown in the following code:

   Employee john = new Employee 
   { 
     Name = "John Jones", 
     DateOfBirth = new DateTime(1990, 7, 28) 
   };
   john.WriteToConsole();
   

4. Run the console application and view the result, as shown in the following output:

   John Jones was born on a Saturday
   

Note that the Employee class has inherited all the members of Person.

Extending classes to add functionality

Now, we will add some employee-specific members to extend the...