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C# 7.1 and .NET Core 2.0 - Modern Cross-Platform Development

C# 7.1 and .NET Core 2.0 - Modern Cross-Platform Development - Third Edition

By : Mark J. Price, Dustin Heffron, Efraim Kyriakidis
4.1 (16)
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C# 7.1 and .NET Core 2.0 - Modern Cross-Platform Development

C# 7.1 and .NET Core 2.0 - Modern Cross-Platform Development

4.1 (16)
By: Mark J. Price, Dustin Heffron, Efraim Kyriakidis

Overview of this book

C# 7.1 and .NET Core 2.0 – Modern Cross-Platform Development, Third Edition, is a practical guide to creating powerful cross-platform applications with C# 7.1 and .NET Core 2.0. It gives readers of any experience level a solid foundation in C# and .NET. The first part of the book runs you through the basics of C#, as well as debugging functions and object-oriented programming, before taking a quick tour through the latest features of C# 7.1 such as default literals, tuples, inferred tuple names, pattern matching, out variables, and more. After quickly taking you through C# and how .NET works, this book dives into the .NET Standard 2.0 class libraries, covering topics such as packaging and deploying your own libraries, and using common libraries for working with collections, performance, monitoring, serialization, files, databases, and encryption. The final section of the book demonstrates the major types of application that you can build and deploy cross-device and cross-platform. In this section, you'll learn about websites, web applications, web services, Universal Windows Platform (UWP) apps, and mobile apps. 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.
Table of Contents (31 chapters)
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Title Page
Credits
About the Author
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface
2
Part 1 – C# 7.1
8
Part 2 – .NET Core 2.0 and .NET Standard 2.0
16
Part 3 – App Models
22
Summary
1
Index

Chapter 6 – Implementing Interfaces and Inheriting Classes


  1. What is a delegate?

Answer: A delegate is a type-safe method reference. It can be used to execute any method with a matching signature.

  1. What is an event?

Answer: An event is a field that is a delegate having the event keyword applied. The keyword ensures that only += and -= are used; this safely combines multiple delegates without replacing any existing event handlers.

  1. How is a base class and a derived class related?

Answer: A derived class (or subclass) is a class that inherits from a base class (or superclass).

  1. What is the difference between the is and as operators?

Answer: The is operator returns true if an object can be cast to the type. The as operator returns a reference if an object can be cast to the type; otherwise, it returns null.

  1. Which keyword is used to prevent a class from being derived from, or a method from being overridden?

Answer:sealed. Find more information on the sealed keyword at: https://msdn.microsoft.com/en-us/library...

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