Kotlin in Action

632 Pages·2017·8.34 MB·English

by  Svetlana Isakova & Dmitry Jemerov [Svetlana Isakova]

Kotlin in Action
Dmitry Jemerov Svetlana Isakova
Copyright
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Manning Publications Co.
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Review editor: Aleksandar Dragosavljević
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ISBN 9781617293290
Printed in the United States of America
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Brief Table of Contents
Copyright
Brief Table of Contents
Table of Contents
Foreword
Preface
Acknowledgments
About this Book
About the Authors
About the Cover Illustration
1. Introducing Kotlin
Chapter 1. Kotlin: what and why
Chapter 2. Kotlin basics
Chapter 3. Defining and calling functions
Chapter 4. Classes, objects, and interfaces
Chapter 5. Programming with lambdas
Chapter 6. The Kotlin type system
2. Embracing Kotlin
Chapter 7. Operator overloading and other conventions
Chapter 8. Higher-order functions: lambdas as
parameters and return values
Chapter 9. Generics
Chapter 10. Annotations and reflection
Chapter 11. DSL construction
Appendix A. Building Kotlin projects
Appendix B. Documenting Kotlin code
Appendix C. The Kotlin ecosystem
Index
List of Figures
List of Tables
List of Listings
Table of Contents
Copyright
Brief Table of Contents
Table of Contents
Foreword
Preface
Acknowledgments
About this Book
About the Authors
About the Cover Illustration
1. Introducing Kotlin
Chapter 1. Kotlin: what and why
1.1. A taste of Kotlin
1.2. Kotlin’s primary traits
1.2.1. Target platforms: server-side, Android,
anywhere Java runs
1.2.2. Statically typed
1.2.3. Functional and object-oriented
1.2.4. Free and open source
1.3. Kotlin applications
1.3.1. Kotlin on the server side
1.3.2. Kotlin on Android
1.4. The philosophy of Kotlin
1.4.1. Pragmatic
1.4.2. Concise
1.4.3. Safe
1.4.4. Interoperable
1.5. Using the Kotlin tools
1.5.1. Compiling Kotlin code
1.5.2. Plug-in for IntelliJ IDEA and Android
Studio
1.5.3. Interactive shell
1.5.4. Eclipse plug-in
1.5.5. Online playground
1.5.6. Java-to-Kotlin converter
1.6. Summary
Chapter 2. Kotlin basics
2.1. Basic elements: functions and variables
2.1.1. Hello, world!
2.1.2. Functions
2.1.3. Variables
2.1.4. Easier string formatting: string templates
2.2. Classes and properties
2.2.1. Properties
2.2.2. Custom accessors
2.2.3. Kotlin source code layout: directories and
packages
2.3. Representing and handling choices: enums and
“when”
2.3.1. Declaring enum classes
2.3.2. Using “when” to deal with enum classes
2.3.3. Using “when” with arbitrary objects
2.3.4. Using “when” without an argument
2.3.5. Smart casts: combining type checks and
casts
2.3.6. Refactoring: replacing “if” with “when”
2.3.7. Blocks as branches of “if” and “when”
2.4. Iterating over things: “while” and “for” loops
2.4.1. The “while” loop
2.4.2. Iterating over numbers: ranges and
progressions
2.4.3. Iterating over maps
2.4.4. Using “in” to check collection and range
membership
2.5. Exceptions in Kotlin
2.5.1. “try”, “catch”, and “finally”
2.5.2. “try” as an expression
2.6. Summary
Chapter 3. Defining and calling functions
3.1. Creating collections in Kotlin
3.2. Making functions easier to call
3.2.1. Named arguments
3.2.2. Default parameter values
3.2.3. Getting rid of static utility classes: top-
level functions and properties
3.3. Adding methods to other people’s classes:
extension functions and properties
3.3.1. Imports and extension functions
3.3.2. Calling extension functions from Java
3.3.3. Utility functions as extensions
3.3.4. No overriding for extension functions
3.3.5. Extension properties
3.4. Working with collections: varargs, infix calls,
and library support
3.4.1. Extending the Java Collections API
3.4.2. Varargs: functions that accept an
arbitrary number of arguments
3.4.3. Working with pairs: infix calls and
destructuring declarations
3.5. Working with strings and regular expressions
3.5.1. Splitting strings
3.5.2. Regular expressions and triple-quoted
strings