Book Image

C# 6 and .NET Core 1.0

Book Image

C# 6 and .NET Core 1.0

Overview of this book

With the release of .NET Core 1.0, you can now create applications for Mac OS X and Linux, as well as Windows, using the development tools you know and love. C# 6 and .NET Core 1.0 has been divided into three high-impact sections to help start putting these new features to work. First, we'll run you through the basics of C#, as well as object-orient programming, before taking a quick tour through the latest features of C# 6 such as string interpolation for easier variable value output, exception filtering, and how to perform static class imports. We'll also cover both the full-feature, mature .NET Framework and the new, cross-platform .NET Core. After quickly taking you through C# and how .NET works, we'll dive into the internals of the .NET class libraries, covering topics such as performance, monitoring, debugging, internationalization, serialization, and encryption. We'll look at Entity Framework Core 1.0 and how to develop Code-First entity data models, as well as how to use LINQ to query and manipulate that data. The final section will demonstrate the major types of applications that you can build and deploy cross-device and cross-platform. In this section, we'll cover Universal Windows Platform (UWP) apps, web applications, and web services. Lastly, we'll help you build a complete application that 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 (25 chapters)
C# 6 and .NET Core 1.0
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Chapter 2 – Speaking C#


What type would you choose for the following "numbers"?

  1. A person's telephone number

    string

  2. A person's height

    float or double

  3. A person's age

    int for performance or byte (0 to 255) for size

  4. A person's salary

    decimal

  5. A book's ISBN

    string

  6. A book's price

    decimal

  7. A book's shipping weight

    float or double

  8. A country's population

    uint (0 to about 4 billion)

  9. The number of stars in the universe

    ulong (0 to about 18 quadrillion) or System.Numerics.BigInteger (allows an arbitrarily large integer)

  10. The number of employees in each of the small or medium businesses in the UK (up to about 50,000 employees per business)

    Since there are hundreds of thousands of small or medium businesses, we need to take memory size as the determining factor so choose ushort because it only takes 2 bytes compared to an int, which takes 4 bytes.