Book Image

Swift 3 Object-Oriented Programming - Second Edition

By : Gaston C. Hillar
Book Image

Swift 3 Object-Oriented Programming - Second Edition

By: Gaston C. Hillar

Overview of this book

Swift has quickly become one of the most-liked languages and developers’ de-facto choice when building applications that target iOS and macOS. In the new version, the Swift team wants to take its adoption to the next level by making it available for new platforms and audiences. This book introduces the object-oriented paradigm and its implementation in the Swift 3 programming language to help you understand how real-world objects can become part of fundamental reusable elements in the code. This book is developed with XCode 8.x and covers all the enhancements included in Swift 3.0. In addition, we teach you to run most of the examples with the Swift REPL available on macOS and Linux, and with a Web-based Swift sandbox developed by IBM capable of running on any web browser, including Windows and mobile devices. You will organize data in blueprints that generate instances. You’ll work with examples so you understand how to encapsulate and hide data by working with properties and access control. Then, you’ll get to grips with complex scenarios where you use instances that belong to more than one blueprint. You’ll discover the power of contract programming and parametric polymorphism. You’ll combine generic code with inheritance and multiple inheritance. Later, you’ll see how to combine functional programming with object-oriented programming and find out how to refactor your existing code for easy maintenance.
Table of Contents (17 chapters)
Swift 3 ObjectOriented Programming - Second Edition
Credits
About the Author
Acknowledgement
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Test your knowledge


  1. You use the static var keywords to declare a:

    1. Type property.

    2. Instance property.

    3. Read-only computed instance property.

  2. You use the static let keywords to declare a:

    1. Mutable type property.

    2. Immutable instance property.

    3. Immutable type property.

  3. An instance-stored property:

    1. Has its own independent value for each instance of a class.

    2. Has the same value for all the instances of a class.

    3. Has the same value for all the instances of a class, unless it is accessed through the class name followed by a dot and the property name.

  4. A class that exposes mutable properties will:

    1. Generate immutable instances.

    2. Generate mutable instances.

    3. Generate mutable classes but immutable instances.

  5. An instance method:

    1. Cannot access instance properties.

    2. Can access instance properties.

    3. Can access only type properties.

  6. Based on Swift API Design Guidelines, which is the most convenient name for a mutable or mutating instance method naturally described by the calculate verb?

    1. calculate.

    2. calculated.

    3. calculation.

  7. Based...