Scala for Java Developers: A Practical Primer

by Toby Weston

Overview

Master the fundamentals of Scala and understand its emphasis on functional programming that sets it apart from Java. This book will help you translate what you already know in Java to Scala to start your functional programming journey. Learn Scala is split into four parts: a tour of Scala, a comparison between Java and Scala, Scala-specific features and functional programming idioms, and finally a discussion about adopting Scala in existing Java teams and legacy projects.

After reading and using this tutorial, you'll come away with the skills in Scala to kick-start your productivity with this growing popular language.

What You'll Learn

• Tour Scala and learn the basic syntax, constructs, and how to use the REPL
• Translate Java syntax that you already know into Scala

• Learn what Scala offers over and above Java
• Become familiar with functional programming concepts and idioms
• Gaintips and advice useful when transitioning existing Java projects to Scala

Who This Book Is For

Java developers looking to transition to Scala. No prior experience necessary in Scala.

Product Details

ISBN-13:	9781484231074
Publisher:	Apress
Publication date:	12/15/2017
Edition description:	1st ed.
Pages:	245
Product dimensions:	7.01(w) x 10.00(h) x (d)

About the Author

Toby Weston is an independent consultant based in London. He specializes in agile enablement, training and modern software development. For more, visit www-dot-baddotrobot-dot-com.

Table of Contents

I. Scala Tour.- 1. The Scala Language.- 2. Installing Scala.- 3. Some Basic Syntax.- 4. Scala’s Class Hierarchy.- 5. ScalaDoc.- 6. Language Features.- II. Key Syntactical Differences.- 7. Classes and Fields.- 8. Classes and Objects.- 9. Classes and Functions.- 10. Inheritance.- 11. Control Structures.- 12. Generics.- III. Beyond Java to Scala.- 13. Faking Function Calls.- 14. Faking Language Constructs.- 15. Pattern Matching.- 16. Map and FlatMap.- 17. Monads.- 18. For Comprehensions.- IV. Adopting Scala in Java Teams.- 19. Adopting Scala.- 20. What to Expect.- 21. Tips.- 22. Convert Your Codebase.- 23. Manage Your Codebase.- Appendix A. Code Listings.- Appendix B. Syntax Cheat Sheet.-

Editorial Reviews

The book is written in an accessible style, with numerous examples, and is suitable for a wide range of audiences from novices, just starting to learn how to handle a programming language, to experts trying to get to grips with Scala. The continuous parallel between Scala and Java is used to highlight an interesting angle in both languages, so, technically, the book can be used as a guide to both Java and Scala.” (Irina Ioana Mohorianu, zbMATH 1382.68005, 2018)

From the Publisher