Kotlin Functional Interface Example
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Functional Programming in Kotlin
Author: Marco Vermeulen
language: en
Publisher: Simon and Schuster
Release Date: 2021-10-05
In Functional Programming in Kotlin you will learn: Functional programming techniques for real-world applications Write combinator libraries Common structures and idioms in functional design Simplicity and modularity (and fewer bugs!) Functional Programming in Kotlin is a reworked version of the bestselling Functional Programming in Scala, with all code samples, instructions, and exercises translated into the powerful Kotlin language. In this authoritative guide, you’ll take on the challenge of learning functional programming from first principles. Complex concepts are demonstrated through exercises that you’ll love to test yourself against. You’ll start writing Kotlin code that’s easier to read, easier to reuse, better for concurrency, and less prone to bugs and errors. Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications. About the technology Improve performance, increase maintainability, and eliminate bugs! How? By programming the functional way. Kotlin provides strong support for functional programming, taking a pragmatic approach that integrates well with OO codebases. By applying the techniques you’ll learn in this book, your code will be safer, less prone to errors, and much easier to read and reuse. About the book Functional Programming in Kotlin teaches you how to design and write Kotlin applications using typed functional programming. Offering clear examples, carefully-presented explanations, and extensive exercises, it moves from basic subjects like types and data structures to advanced topics such as stream processing. This book is based on the bestseller Functional Programming in Scala by Rúnar Bjarnason and Paul Chiusano. What's inside Functional programming techniques for real-world situations Common structures and idioms in functional design Simplicity, modularity, and fewer bugs! About the reader For Kotlin developers. No functional programming experience required. About the author Marco Vermeulen has two decades of programming experience on the JVM. Rúnar Bjarnason and Paul Chiusano are the authors of Functional Programming in Scala. Tabel of Contents PART 1 INTRODUCTION TO FUNCTIONAL PROGRAMMING 1 What is functional programming? 2 Getting started with functional programming in Kotlin 3 Functional data structures 4 Handling errors without exceptions 5 Strictness and laziness 6 Purely functional state PART 2 FUNCTIONAL DESIGN AND COMBINATOR LIBRARIES 7 Purely functional parallelism 8 Property-based testing 9 Parser combinators PART 3 COMMON STRUCTURES IN FUNCTIONAL DESIGN 10 Monoids 11 Monads and functors 12 Applicative and traversable functors PART 4 EFFECTS AND I/O 13 External effects and I/O 14 Local effects and mutable state 15 Stream processing and incremental I/O
Android application development with Kotlin
Unleash the Power of Kotlin for Android App DevelopmentDESCRIPTION This book aims to provide the knowledge around the fundamental concept of Kotlin languages, and it's an application in Android application development. It covers basic to advanced concepts with practical examples. Each chapter in this book is a step by step journey towards the learning Kotlin and excel in various topics and concepts. It covers topics like data types, various functions, including lambdas and higher-order functions. It also covers advanced topics like Generics, Collections, DSL, Coroutine, etc. Most importantly, such concepts are explained with practical usage of it in Android application. You will get to know what is the best possible way to use these concepts while you develop an Android application. In this book, along with Kotlin, an attempt has been made where few Android-specific topics are also explained. For example, the application is using Architecture components, including ViewModel, LiveData, NavigationComponent, and also it uses Flow, which is a hot topic in Kotlin. While we learn this concept, along with that, we also develop a sample application where we can apply our learning and, in the end, have some tangible and measurable output.Readers with little previous knowledge of Android application development can easily follow this book. Most of the chapters are code-heavy and focuses on practical usage of Kotlin's features. Each chapter has code on the GitHub. You can check out this code and try it out. Or you can develop in parallel and cherry-pick things from the sample code base as and when you need it. Few chapters also follow the quiz at the end, and you can self assess yourself by going through that quiz. In total there are ten chapters.KEY FEATURES - The book has theories explained elaborately along with Kotlin code and corresponding output to support the theoretical explanations. The Kotlin codes are provided with step-by-step comments to explain each instruction of the code.- The book is quite well balanced with programs and illustrative real-case problems. - The book is not just explaining theoretical concepts of the language. Still, it explains how the full-fledged application can be developed using some latest tools and technologies and create an excellent Android application using Kotlin.- Few of the chapter offers the quiz at the end of it. And you can revise the concepts quickly.- A rich sample application is created to demonstrate Kotlin's capability in various parts of the application.- Quite the latest concepts are discussed in depth. For example, Flow, NavigationComponent, Coroutine, ViewModel, and LiveData.WHAT WILL YOU LEARN - Know the basics and many advanced concepts of Android.Able to code in Kotlin for your Android application.- You will know how architecture components can be used in Android application with Kotlin.- Writing tests that use coroutine, Flow, LiveData, and ViewModel.- What measures you need to take before you put an application in production.- How agile practices can be applied before and after the application development is started.WHO THIS BOOK IS FOR The book is for readers with basic programming and android application development skills. The book is for any engineering graduates that wish to use Kotlin as a programming language for their Android application or wish to build a career in this direction. This book can also be useful for those who want to learn how testing aspects work for Android applications. The use cases and programs discussed in the book are self-explanatory and detailed with practical examples wherever necessary. This is why the book can be read by anyone who has an interest in Kotlin and Android and how applications are developed with the industry level standard maintained. TABLE OF CONTENTS1. Getting started with Kotlin for Android2. Kotlin Fundamentals3. Go to the Depth of Kotlin4. Design Patterns in Kotlin5. Analyzing and Architecting a Meal Recipe App6. Making Network Calls Using Coroutines7. Kotlin-ize remaining of your app8. Testing the Kotlin Code9. Make Your App Production Ready10. Kotlin EverywhereAUTHOR BIO Hardik Trivedi is a computer programmer and self-taught Android application development. He started Android application development back in 2010. He is a Kotlin enthusiast and an active community speaker. He actively contributes to Stack overflow and also writes a blog. An Android application developer on his job, he has worked in numerous domains, for example, consumer internet, sports, banking, entertainment. He also mentors college students and professionals who want to develop their career in Android application development. As an active contributor in the community, he has delivered speeches for events hosted by GDG (Google Developer Group). He is already a co-author of "e;Kotlin Blueprints"e; - A book that explains how Kotlin can be used everywhere. In his personal life, he loves to travel, paint, and cook. In his retirement days, you may find him owning a restaurant and making lip-smacking food for his customers.Your Blog links: - https://trivedihardik.wordpress.com/Your LinkedIn Profiles: LinkedIn Profile of Hardik Trivedi available at https://www.linkedin.com/in/hardik-trivedi-a782381a/
Kotlin Essentials
"Kotlin Essentials" Kotlin Essentials is a comprehensive guide designed to take developers from foundational understanding to expert proficiency in Kotlin, whether they are transitioning from Java, embracing multiplatform projects, or seeking to master advanced language features. The book opens with an in-depth exploration of modern language fundamentals, highlighting Kotlin’s expressive syntax, robust static typing with type inference, and innovative null-safety mechanisms. Readers will gain practical insights into control flow, concise function definitions, and the power of extension functions, all compared thoughtfully with Java and Scala paradigms for clear context. As the journey unfolds, the book delves into the core of Kotlin's object-oriented and functional programming capabilities. It covers advanced class structures, inheritance, abstraction, and the effective use of data, sealed, and singleton objects. Readers will discover patterns for designing extensible hierarchies, building reusable components through delegation and composition, and leveraging powerful functional constructs such as higher-order functions, immutability, and algebraic data types. The advanced type system receives thorough attention, with coverage of generics, variance, inline and reified types, and runtime reflection—ensuring robust, type-safe abstractions for any scenario. Recognizing the realities of modern software development, Kotlin Essentials expertly addresses asynchronous programming with coroutines, architectural patterns for concurrency, and multiplatform strategies for code sharing across JVM, JS, and Native targets. It guides professionals through effective collection usage, interop with Java and JavaScript, building expressive DSLs, compiling and profiling for performance, and best practices in testing, deployment, and scaling. Whether developing Android apps, server-side systems, or cutting-edge multiplatform solutions, this book provides a complete and authoritative resource for mastering Kotlin in production settings.