Kotlin Cookbook: A Problem-Focused Approach

Cover
Copyright
Table of Contents
Foreword
Preface
	Who Should Read This Book
	How This Book Is Organized
	Conventions Used in This Book
	Using Code Examples
	O’Reilly Online Learning
	How to Contact Us
	Acknowledgments
Chapter 1. Installing and Running Kotlin
	1.1 Running Kotlin Without a Local Compiler
		Problem
		Solution
		Discussion
	1.2 Installing Kotlin Locally
		Problem
		Solution
		Discussion
		See Also
	1.3 Compiling and Running Kotlin from the Command Line
		Problem
		Solution
		Discussion
		See Also
	1.4 Using the Kotlin REPL
		Problem
		Solution
		Discussion
	1.5 Executing a Kotlin Script
		Problem
		Solution
		Discussion
	1.6 Building a Standalone Application Using GraalVM
		Problem
		Solution
		Discussion
	1.7 Adding the Kotlin Plug-in for Gradle (Groovy Syntax)
		Problem
		Solution
		Discussion
		See Also
	1.8 Adding the Kotlin Plug-in for Gradle (Kotlin Syntax)
		Problem
		Solution
		Discussion
		See Also
	1.9 Using Gradle to Build Kotlin Projects
		Problem
		Solution
		Discussion
	1.10 Using Maven with Kotlin
		Problem
		Solution
		Discussion
Chapter 2. Basic Kotlin
	2.1 Using Nullable Types in Kotlin
		Problem
		Solution
		Discussion
	2.2 Adding Nullability Indicators to Java
		Problem
		Solution
		Discussion
	2.3 Adding Overloaded Methods for Java
		Problem
		Solution
		Discussion
	2.4 Converting Between Types Explicitly
		Problem
		Solution
		Discussion
	2.5 Printing to Different Bases
		Problem
		Solution
		Discussion
	2.6 Raising a Number to a Power
		Problem
		Solution
		Discussion
	2.7 Using Bitwise Shift Operators
		Problem
		Solution
		Discussion
	2.8 Using Bitwise Boolean Operators
		Problem
		Solution
		Discussion
	2.9 Creating Pair Instances with to
		Problem
		Solution
		Discussion
Chapter 3. Object-Oriented Programming in Kotlin
	3.1 Understanding the Difference Between const and val
		Problem
		Solution
		Discussion
		See also
	3.2 Creating Custom Getters and Setters
		Problem
		Solution
		Discussion
		See Also
	3.3 Defining Data Classes
		Problem
		Solution
		Discussion
	3.4 The Backing Property Technique
		Problem
		Solution
		Discussion
		See Also
	3.5 Overloading Operators
		Problem
		Solution
		Discussion
	3.6 Using lateinit for Delayed Initialization
		Problem
		Solution
		Discussion
		See Also
	3.7 Using Safe Casting, Reference Equality, and Elvis to Override equals
		Problem
		Solution
		Discussion
		See Also
	3.8 Creating a Singleton
		Problem
		Solution
		Discussion
	3.9 Much Ado About Nothing
		Problem
		Solution
		Discussion
Chapter 4. Functional Programming
	4.1 Using fold in Algorithms
		Problem
		Solution
		Discussion
		See Also
	4.2 Using the reduce Function for Reductions
		Problem
		Solution
		Discussion
		See Also
	4.3 Applying Tail Recursion
		Problem
		Solution
		Discussion
Chapter 5. Collections
	5.1 Working with Arrays
		Problem
		Solution
		Discussion
	5.2 Creating Collections
		Problem
		Solution
		Discussion
	5.3 Creating Read-Only Views from Existing Collections
		Problem
		Solution
		Discussion
	5.4 Building a Map from a Collection
		Problem
		Solution
		Discussion
	5.5 Returning a Default When a Collection Is Empty
		Problem
		Solution
		Discussion
	5.6 Restricting a Value to a Given Range
		Problem
		Solution
		Discussion
	5.7 Processing a Window on a Collection
		Problem
		Solution
		Discussion
	5.8 Destructuring Lists
		Problem
		Solution
		Discussion
	5.9 Sorting by Multiple Properties
		Problem
		Solution
		Discussion
	5.10 Defining Your Own Iterator
		Problem
		Solution
		Discussion
	5.11 Filtering a Collection by Type
		Problem
		Solution
		Discussion
	5.12 Making a Range into a Progression
		Problem
		Solution
		Discussion
Chapter 6. Sequences
	6.1 Using Lazy Sequences
		Problem
		Solution
		Discussion
	6.2 Generating Sequences
		Problem
		Solution
		Discussion
		See Also
	6.3 Managing Infinite Sequences
		Problem
		Solution
		Discussion
	6.4 Yielding from a Sequence
		Problem
		Solution
		Discussion
		See Also
Chapter 7. Scope Functions
	7.1 Initializing Objects After Construction with apply
		Problem
		Solution
		Discussion
	7.2 Using also for Side Effects
		Problem
		Solution
		Discussion
		See Also
	7.3 Using the let Function and Elvis
		Problem
		Solution
		Discussion
		See Also
	7.4 Using let with a Temporary Variable
		Problem
		Solution
		Discussion
		See Also
Chapter 8. Kotlin Delegates
	8.1 Implementing Composition by Delegation
		Problem
		Solution
		Discussion
		See Also
	8.2 Using the lazy Delegate
		Problem
		Solution
		Discussion
	8.3 Ensuring That a Value Is Not Null
		Problem
		Solution
		Discussion
	8.4 Using the observable and vetoable Delegates
		Problem
		Solution
		Discussion
	8.5 Supplying Maps as Delegates
		Problem
		Solution
		Discussion
	8.6 Creating Your Own Delegates
		Problem
		Solution
		Discussion
Chapter 9. Testing
	9.1 Setting the Test Class Life Cycle
		Problem
		Solution
		Discussion
	9.2 Using Data Classes for Tests
		Problem
		Solution
		Discussion
	9.3 Using Helper Functions with Default Arguments
		Problem
		Solution
		Discussion
	9.4 Repeating JUnit 5 Tests with Different Data
		Problem
		Solution
		Discussion
		See Also
	9.5 Using Data Classes for Parameterized Tests
		Problem
		Solution
		Discussion
		See Also
Chapter 10. Input/Output
	10.1 Managing Resources with use
		Problem
		Solution
		Discussion
		See Also
	10.2 Writing to a File
		Problem
		Solution
		Discussion
		See Also
Chapter 11. Miscellaneous
	11.1 Working with the Kotlin Version
		Problem
		Solution
		Discussion
	11.2 Executing a Lambda Repeatedly
		Problem
		Solution
		Discussion
	11.3 Forcing when to Be Exhaustive
		Problem
		Solution
		Discussion
	11.4 Using the replace Function with Regular Expressions
		Problem
		Solution
		Discussion
		See Also
	11.5 Converting to Binary String and Back
		Problem
		Solution
		Discussion
	11.6 Making a Class Executable
		Problem
		Solution
		Discussion
		See also
	11.7 Measuring Elapsed Time
		Problem
		Solution
		Discussion
	11.8 Starting Threads
		Problem
		Solution
		Discussion
		See Also
	11.9 Forcing Completion with TODO
		Problem
		Solution
		Discussion
	11.10 Understanding the Random Behavior of Random
		Problem
		Solution
		Discussion
	11.11 Using Special Characters in Function Names
		Problem
		Solution
		Discussion
	11.12 Telling Java About Exceptions
		Problem
		Solution
		Discussion
Chapter 12. The Spring Framework
	12.1 Opening Spring-Managed Bean Classes for Extension
		Problem
		Solution
		Discussion
		See Also
	12.2 Persisting Kotlin Data Classes
		Problem
		Solution
		Discussion
		See Also
	12.3 Injecting Dependencies
		Problem
		Solution
		Discussion
Chapter 13. Coroutines and Structured Concurrency
	13.1 Choosing Coroutine Builders
		Problem
		Solution
		Discussion
	13.2 Replacing async/await with withContext
		Problem
		Solution
		Discussion
	13.3 Working with Dispatchers
		Problem
		Solution
		Discussion
		See Also
	13.4 Running Coroutines on a Java Thread Pool
		Problem
		Solution
		Discussion
		See Also
	13.5 Cancelling Coroutines
		Problem
		Solution
		Discussion
	13.6 Debugging Coroutines
		Problem
		Solution
		Discussion
Index
About the Author