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Swift for Programmers

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Swift for Programmers

Book

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About

Features

  • A programming-language focused book designed to get practicing programmers up-to-speed quickly in Swift programming
  • Learn the new programming language for iOS and OS X apps that builds on the best of C and Objective-C
  • Includes code snippets and live-code examples

Description

  • Copyright 2015
  • Dimensions: 7" x 9-1/8"
  • Pages: 408
  • Edition: 1st
  • Book
  • ISBN-10: 0-13-402136-3
  • ISBN-13: 978-0-13-402136-2

The professional programmer’s Deitel® guide to Apple’s new Swift programming language for the iOS® and OS X® platforms

Written for programmers with a background in object-oriented programming in a C-based language like Objective-C, Java, C# or C++, this book applies the Deitel signature live-code approach with scores of complete, working, real-world programs to explore the new Swift language in depth. The code examples feature syntax shading, code highlighting, rich commenting, line-by-line code walkthroughs and live program outputs. The book features thousands of lines of proven Swift code, and tips that will help you build robust applications.

Start with an introduction to Swift using an early classes and objects approach, then rapidly move on to more advanced topics. When you master the material, you’ll be ready to build industrial-strength object-oriented Swift applications.


About This Book

The Swift programming language was arguably the most significant announcement at Apple’s 2014 Worldwide Developers Conference. Although apps can still be developed in Objective-C®, Apple says that Swift is its applications programming and systems programming language of the future.

Swift is a contemporary language with simpler syntax than Objective-C. Because Swift is new, its designers were able to include popular programming language features from languages such as Objective-C, Java, C#, Ruby, Python® and many others. These features include automatic reference counting (ARC), type inference, optionals, String interpolation, tuples, closures (lambdas), extensions, generics, operator overloading, functions with multiple return values, switch statement enhancements and more. We’ve been able to develop apps more quickly in Swift than with Objective-C and the code is shorter, clearer and runs faster on today’s multi-core architectures.

Swift also eliminates the possibility of many errors common in other languages, making your code more robust and secure. Some of these error-prevention features include no implicit conversions, ARC, no pointers, required braces around every control statement’s body, assignment operators that do not return values, requiring initialization of all variables and constants before they’re used, array bounds checking, automatic checking for overflow of integer calculations, and more. You can combine Swift and Objective-C in the same app to enhance existing Objective-C apps without having to rewrite all the code. Your apps will easily be able to interact with the Cocoa®/Cocoa Touch® frameworks, which are largely written in Objective-C.

You can also use the new Xcode playgrounds with Swift. A playground is an Xcode window in which you can enter Swift code that compiles and executes as you type it. This allows you to see and hear your code’s results as you write it, quickly find and fix errors, and conveniently experiment with features of Swift and the Cocoa/Cocoa Touch frameworks.

Practical, Example-Rich Coverage of:

  • Classes, Objects, Methods, Properties
  • Initializers, Deinitializers, Bridging
  • Tuples, Array and Dictionary Collections
  • Structures, Enumerations, Closures, ARC
  • Inheritance, Polymorphism, Protocols
  • Type Methods, Type Properties
  • Generics; Strings and Characters
  • Operator Overloading, Operator Functions, Custom Operators, Subscripts
  • Access Control; Type Casting and Checking
  • Nested Types, Nested Methods
  • Optionals, Optional Chaining, Extensions
  • Xcode, Playgrounds, Intro to Cocoa Touch® with a Fully Coded iOS® 8 Tip Calculator App
  • Overflow Operators, Attributes, Patterns
  • More topics online
IMPORTANT NOTE ABOUT XCODE AND SWIFT: With Xcode 6.3 and Swift 1.2, Apple introduced several changes in Swift that affect the book's source code. Please visit www.deitel.com/books/iOS8FP1 for updated source code. The changes do not affect Xcode 6.2 users. You can download Xcode 6.2 from developer.apple.com/downloads/index.action (you’ll have to log in with your Apple developer account to see the list of downloads).

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Visit www.deitel.com

  • Download code examples
  • For information on Deitel’s Dive Into® Series programming training courses delivered at organizations worldwide visit www.deitel.com/training or to deitel@deitel.com
  • Join the Deitel social networking communities on Facebook® at facebook.com/DeitelFan, Twitter® at @deitel, Google+ at google.com/+DeitelFan, LinkedIn® at bit.ly/DeitelLinkedIn, YouTube™ at youtube.com/user/DeitelTV and subscribe to the Deitel® Buzz Online e-mail newsletter at www.deitel.com/newsletter/ subscribe.html

Sample Content

Online Sample Chapter

Introduction to Classes, Objects, Methods and Functions in Swift

Table of Contents

Preface         xix

Before You Begin         xxvii

Chapter 1: Introduction to Swift and Xcode         6 1

1.1 Introduction   2

1.2 Apple’s OS X® and iOS® Operating Systems: A Brief History   3

1.3 Objective-C   3

1.4 Swift: Apple’s Programming Language of the Future   4

1.5 Can I Use Swift Exclusively?   9

1.6 Xcode 6 Integrated Development Environment   10

1.7 Creating Swift Apps with Xcode 6   13

1.8 Web Resources   18

Chapter 2: Introduction to Swift Programming         20

2.1 Introduction   21

2.2 A First Swift Program: Printing a Line of Text   21

2.3 Modifying Your First Program   23

2.4 Composing Larger Strings with String Interpolation   25

2.5 Another Application: Adding Integers   27

2.6 Arithmetic   28

2.7 Decision Making: The if Conditional Statement and the Comparative Operators   29

2.8 Wrap-Up   32

Chapter 3: Introduction to Classes, Objects, Methods and Functions          33

3.1 Introduction   34

3.2 Account Class   35

3.3 Creating and Using Account Objects   40

3.4 Value Types vs. Reference Types   45

3.5 Software Engineering with Access Modifiers   46

3.6 Wrap-Up   47

Chapter 4: Control Statements; Assignment, Increment and Logical Operators           48

4.1 Introduction   49

4.2 Control Statements   49

4.3 if Conditional Statement   50

4.4 if…else Conditional Statement   50

4.5 Compound Assignment Operators   52

4.6 Increment and Decrement Operators   53

4.7 switch Conditional Statement   55

4.8 while Loop Statement   57

4.9 do…while Loop Statement   58

4.10 for…in Loop Statement and the Range Operators   58

4.11 for Loop Statement   63

4.12 break and continue Statements   64

4.13 Logical Operators   66

4.14 Wrap-Up   69

Chapter 5: Functions and Methods: A Deeper Look; enums and Tuples         70

5.1 Introduction   71

5.2

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