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The professional programmer’s Deitel� guide to Apple’s new Swift programming language for the iOS� and OS X� platforms
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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.
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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
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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.
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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.
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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.
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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.
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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
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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
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- Sales Rank: #833182 in Books
- Published on: 2015-02-01
- Original language: English
- Number of items: 1
- Dimensions: 9.00" h x 1.10" w x 6.90" l, .0 pounds
- Binding: Paperback
- 400 pages
Review
“Apple took everyone by surprise when they announced a new programming language for developing Mac and iOS applications. Taking lessons from Objective-C and many other languages, Apple built a new language from the ground up. There is a lot to learn–new syntax, new idioms and more. It all seems daunting, but the Deitels have written a book that thoroughly explores Swift and Xcode 6 and guides you through what you need to know, regardless of which language you came from.”
–Robert McGovern, Independent Developer
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“An excellent introduction to Apple’s new programming language. Line-by-line code explanations. Practical real-world abstractions throughout the code. Full of links to great resources. Features are introduced by comparison to established programming concepts making Swift easy to learn for developers new to Apple’s platforms. A must-read.”
–Ren� Cacheaux, iOS Architect, Mutual Mobile
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“It’s surprising that a book of this quality, depth and breadth has appeared so soon after Swift was announced. The ideal accompaniment to Apple’s reference documentation. This developers’ book takes an in-depth look at Swift. Whether you’re moving to the Apple ecosystem from a C++, C# or Java background or you’re an Objective-C programmer looking to update your skills to this newest and most exciting of Apple’s languages, this book is for you. Complements the Deitels’ excellent book iOS 8 for Programmers: An App-Driven Approach with Swift and maintains their trademark high-quality approach, containing many interactive, nontrivial code examples with in-depth code walkthroughs and best practices. Uses the power of Swift with Cocoa’s Foundation classes. A must-have for any serious Apple developer.”
–Rik Watson, Technical Team Lead for HP Enterprise Services (Applications Services)
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“Perfect for the Objective-C developer looking to quickly learn Apple’s newest language. You’ll learn how to incorporate new Swift features such as tuples, closures and generics into your existing Objective-C projects. You’ll appreciate Swift’s built-in error handling while working through real-world examples in Xcode playgrounds.”
–Scott Bossack, Lead iOS Developer, Thrillist Media Group
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“The chapters are comprehensive, covering simple use cases to complex challenges Swift is distinctly suited for. The code examples often represent day-to-day programming challenges. A wonderful learning tool and a handy reference for experienced developers.”
–Ash Furrow, iOS Developer, Artsy
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“With Swift-based IOS 8 and OS X development the Deitel magic continues. They guide you through Swift with increasingly complex projects. They also offer valuable software engineering tips, performance improvements and techniques for preventing common errors. Whether your programming background is Java, C#, C++ or Objective-C, you will benefit from this valuable book. There is no question that Swift is Apple’s programming language of the future. This book by Paul and Harvey Deitel will be your guide to that future.”
–Charles Brown, Independent Contractor affiliated with Apple and Adobe
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“Fantastic, especially for those involved in iOS and OS X development. Complete examples help explain concepts clearly. Great combination of Swift topics and helpful real-world tips on working with Cocoa’s Foundation classes, software engineering, performance, and error prevention. Highly recommended.”
–Jack Watson-Hamblin, Programming Writer and Teacher, MotionInMotion
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“The explanation of hash tables in the Dictionaries chapter is a plus; includes important tips, helping you avoid common roadblocks; every code sample is provided as a playground, letting you try out and modify the samples–cool! Great example on when to use an implicitly unwrapped failable initializer; liked how Chapter 8 kept building upon the Time class; validating property values via property observers is a nice practical tip. The Structs chapter includes great tips such as defining struct custom initializers in extensions so that you continue to get access to the autogenerated memberwise initializer, saving developers time. Great nested type example. Includes the all-important advice about when to use reference types vs. value types. Chapter 10 has a nice introduction to polymorphism; great real-world examples, including a practical illustration on how to use protocols. Perfect introduction to generics. Love the NSDecimalNumber arithmetic operator overload example in Chapter 12–it illustrates Swift’s expressiveness while working with Objective-C code; this treatment of operator overloading and associated topics is very complete and includes great tips.”
–Ren� Cacheaux, iOS Architect, Mutual Mobile
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“I loved how the Dictionary examples represent problems programmers actually face. The Classes chapter is very good; I love the breadth and helpful caveats. Chapter 9, Structures and Enumerations, is fantastic–gives readers a sense of how the different data types work and when each is appropriate; a thorough description of some of Swift’s most awesome features. The Inheritance, Polymorphism and Protocols chapter includes the only explanation of polymorphism I’ve ever read in a textbook that makes sense; great use of case studies to solidify new concepts. I liked the discussion of how the Swift standard library uses generics and that the reader has been using them throughout this book. I appreciated the operator overloading examples using both custom types and Swift/Foundation ones–a really great chapter covering a super-cool feature of Swift whilst urging the appropriate level of caution.”
–Ash Furrow, iOS Developer, Artsy
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“A quick and enjoyable introduction to the Swift programming language. Covers Swift’s strong typing, integration with Objective-C, use of the number and string primitives as well as the array and dictionary collections. I liked the way that mutability and immutability were explained, and where optionals were returned from subscripted access; the playgrounds were easy to experiment in. It was good that you created the array [Payable]–showing that protocols are also types. Good generics examples, particularly the safer Stack.”
–Abizer Nasir, Freelance iOS and OS X Developer, Jungle Candy Software Ltd.
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“The syntax shading really helps set the code apart. The introductory tour of Xcode was great. I liked the callouts for engineering tips and best programming practices. I thought the discussion about Hashing was particularly invaluable and informative. A good job of showing how to use structs and enums and their increased power compared to say Objective-C–I like that you returned to earlier examples and re-implemented them using structs to compare the different approaches. The Operator Overloading chapter felt like it was constantly teaching me something–it was thorough and all the tips felt appropriate.”
–Robert McGovern, Independent Developer
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“I’m happy with the pace, especially if I consider the target audience to be an existing Objective-C programmer. The Functions, Methods, enums and Tuples chapter is excellent. Loved the Arrays chapter–the book is worth it just for the performance tips alone; I really like the creating and initializing arrays example; sorting an Array with the method sorted and closures is a good example; the variadic parameters example is lovely. The Classes chapter is full of sound software engineering principles applied in a very understandable way to the new idioms exposed by Swift. Great enum examples. The Inheritance, Polymorphism and Protocols chapter is excellent. An excellent introduction to generics. Chapter 12 is a great intro to the more complicated aspects of String manipulation whilst showing some great, real-world operator overloading examples.”
–Rik Watson, Technical Team Lead for HP Enterprise Services (Applications Services)
About the Author
Paul Deitel and Harvey Deitel are the founders of Deitel & Associates, Inc., the internationally recognized programming languages authoring and corporate-training organization. Millions of people worldwide have used Deitel books, LiveLessons video training and online resource centers to master iOS� app development in Swift and Objective-C, and Java™, C++, Android™, C#, .NET, Visual Basic�, Visual C++�, C, Internet and web programming, JavaScript�, HTML, CSS, XML, Python�, PHP and more.
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Most helpful customer reviews
13 of 16 people found the following review helpful.
Swift Book truly written for Programmers coming from C++, Java, C#, or Objective-C
By Eric R. Dunstan
Having read all fourteen chapters in this book, I now feel competent in this new language that is very different from all other object-oriented compilable languages I know. I have worked extensively in Java, C#, C++, and Objective-C. Swift seems to be a distant relative to all those languages. In fact, Swift seems to be so distinct as to be in a language family of its own. So there is a greater learning curve to mastering this language coming from those languages than there is in going from one to another among those languages, such as from Java to C++. However, this book is titled correctly: "Swift for Programmers". It assumes you are already a programmer in one of those languages, and thus you do not start from programming 101. Instead, this book gets you up-to-speed fast, and is quick paced, giving just enough coverage to enable comprehension of a language feature before moving onward.
The concepts covered are clear and well written. The book as a whole is well written, and can easily be read from cover to cover. The last two chapters are a quick intro to iOS programming with Swift, but the rest of the book applies to development in the language itself, whether the target is OS X or iOS. The book is a quick read but comprehensive, and I highly recommend this book for programmers who want to get into this new technology coming from another technology, whether it is from iOS in Objective-C or from C++,Java, or C#.
Once you master this language, if you knew Objective-C, you will understand why Apple is moving over to this new technology for all their development. Swift is better, more powerful, and faster to develop in than Objective-C and you can directly access libraries written in Objective-C and C from your Swift code. However, there is no equivalent of Objective-C++ in Swift yet, but the technology is quite new, and we don't know how it will change in coming years. But the book makes clear that rapid changes are occurring in the language. So what you learn today may be different in the soon future. However, now is the time to come onboard with Swift, in its infancy, so you can ride the wave and have the advantage over those still working in Objective-C.
There are a lot of unusual features in Swift that require an in-depth explanation to understand, and this book provides that. For example, the book covers the automatic conversion of common types between Swift and Objective-C libraries that it uses. It mentions how NSString, NSDictionary, and NSArray are converted to Swift's value based struct equivalents transparently to the programmer. It also mentions the memory management of Swift. Swift does not have automatic garbage collection like Java or C#, but neither does it have raw pointers like C++, C, and Objective-C. Instead, it accomplishes memory management through ARC (Automatic Reference Counting), which is a feature started in Objective-C and perfected in Swift. Basically, the Swift compiler handles all the ARC code; all the programmer needs to do is prevent circular references, which is done by using weak references. ARC is used for reference types only. Everything else is passed by value on the stack, and these are called structs. Even numbers are value objects with methods and properties.
Swift is an object-oriented language without a common super object from which all classes descend. Swift classes do not need to have a super class. However, your Swift classes can descend from Objective-C classes and inherit and change their methods. This book covers these object-oriented features, including extensions, which is the Swift version of Objective-C categories, only much more powerful. With extensions and operator overloading, the book shows how you can add overloaded operators to existing Objective-C classes in Foundation and Cocoa and Cocoa-Touch without access to the source code of those classes! C++ and C# are not quite as capable in their operator overloading functionality.
This book also covers how they totally avoid the problems of Null Pointer Exceptions, which is a problem with most other compilable languages. This is accomplished through optionals. Note that there are in fact no such thing as Exceptions in Swift. Instead you have failable initializers, which return optionals containing nil if they fail.
These details just cover the tip of the iceberg in this new language. I strongly recommend buying this book while it is new. I bought it the day it was released, and I have never regretted it. It was a good read and serves as a good reference with good pointers to go back to. In addition, almost every section points to URLs that you find more detailed discussions on the internet for further understanding. In summary, this is a very good book.
5 of 6 people found the following review helpful.
I really didn’t like this book
By ZenToadBookWorm
I really didn’t like this book. Because of the title, I assumed that this book would get me up and coding in no time. Instead, most of the book is dedicated to code snippets and short examples introducing the language. If this book is really for programmers, why are you explaining with paragraphs and code examples how the “or” operator works. I already know how to program, and I already know all this stuff. It isn’t until Chapter 13 that the book starts explaining stuff that a programmer new to the language wouldn’t know. So I do not recommend this book. A few hours online looking at documentation would give you the same amount of knowledge.
1 of 1 people found the following review helpful.
Already somewhat out of date
By SW
Buy an expensive computer language book with a copyright the same year you bought it (2015) you would expect it to be completely relevant. A lot of the code will not compile with the latest Swift because of small syntax changes.
Just to list a few things wrong that prevent compiling:
1. "println()" used in almost every example needs to be changed to "print()"
2. "#" prefix for givng an external parameter name the same name as the internal has been removed from the language.
3. "Printable" protocol has been replaced "CustomStringConvertible" . This is the way to make the object print themselves.
The book is pretty good otherwise. If Deitel updates the book and Apple stop breaking compatibility with syntax changes it probably would be 4 or five star book. But you can start to see why the internet is replacing computer books with this example.
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