Book Image

C# 7 and .NET Core: Modern Cross-Platform Development - Second Edition

Book Image

C# 7 and .NET Core: Modern Cross-Platform Development - Second Edition

Overview of this book

If you want to build powerful cross-platform applications with C# 7 and .NET Core, then this book is for you. First, we’ll run you through the basics of C#, as well as object-oriented programming, before taking a quick tour through the latest features of C# 7 such as tuples, pattern matching, out variables, and so on. After quickly taking you through C# and how .NET works, we’ll dive into the .NET Standard 1.6 class libraries, covering topics such as performance, monitoring, debugging, serialization and encryption. The final section will demonstrate the major types of application that you can build and deploy cross-device and cross-platform. In this section, we’ll cover Universal Windows Platform (UWP) apps, web applications, mobile apps, and web services. Lastly, we’ll look at how you can package and deploy your applications so that they can be hosted on all of today’s most popular platforms, including Linux and Docker. By the end of the book, you’ll be armed with all the knowledge you need to build modern, cross-platform applications using C# and .NET Core.
Table of Contents (24 chapters)
C# 7 and .NET Core: Modern Cross-Platform Development - Second Edition
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Inheriting from classes


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

Add a new class named Employee.cs to the Ch07_PacktLibrary project.

Modify its code as shown in the following code:

    using System; 
 
    namespace Packt.CS7 
    { 
      public class Employee : Person 
      { 
      } 
    } 

Add statements to the Main method to create an instance of the Employee class:

    Employee e1 = new Employee  
    { 
      Name = "John Jones",  
      DateOfBirth = new DateTime(1990, 7, 28)  
    }; 
    e1.WriteToConsole(); 

Run the console application and view the output:

John Jones was born on Saturday, 28 July 1990

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

Extending classes

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

In the Employee class, add the following code to define...