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  • Book Overview & Buying Scala for Java Developers
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Scala for Java Developers

Scala for Java Developers

By : Thomas Alexandre
4.3 (16)
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Scala for Java Developers

Scala for Java Developers

4.3 (16)
By: Thomas Alexandre
Buy this Book

Overview of this book

This step-by-step guide is full of easy-to-follow code taken from real-world examples explaining the migration and integration of Scala in a Java project. If you are a Java developer or a Java architect, working in Java EE-based solutions and want to start using Scala in your daily programming, this book is ideal for you. This book will get you up and running quickly by adopting a pragmatic approach with real-world code samples. No prior knowledge of Scala is required.
Table of Contents (19 chapters)
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Scala for Java Developers
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Scala for Java Developers
Credits
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Credits
Foreword
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Foreword
About the Author
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About the Author
Acknowledgments
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Acknowledgments
About the Reviewers
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About the Reviewers
www.PacktPub.com
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www.PacktPub.com
Preface
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Preface
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1
Programming Interactively within Your Project
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Programming Interactively within Your Project
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Advantages of using Scala for Java projects
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Learning Scala through the REPL
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Operations on collections
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Summary
2
Code Integration
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Code Integration
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Creating a REST API from an existing database
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Adding a test in Scala
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Setting up Scala within a Java Maven project
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Scala and Java collaboration
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Differences in style between Java and Scala code
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Summary
3
Understanding the Scala Ecosystem
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Understanding the Scala Ecosystem
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Inheriting Java Integrated Development Environments (IDEs)
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Building with Simple Build Tool (SBT)
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Experimenting with Scala Worksheets
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Working with HTTP
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Taking advantage of Typesafe Activator
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The REPL as a scripting engine
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Summary
4
Testing Tools
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Testing Tools
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Writing tests with ScalaTest
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Testing with ScalaCheck
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Summary
5
Getting Started with the Play Framework
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Getting Started with the Play Framework
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Getting started with the classic Play distribution
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Getting started with the Typesafe Activator
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Architecture of a Play application
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Playing with authentication
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Practical tips when using Play
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Summary
6
Database Access and the Future of ORM
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Database Access and the Future of ORM
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Integrating an existing ORM – Hibernate and JPA
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Dealing with persistence in the Play Framework
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Replacing ORM
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Learning about Slick
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Scaffolding a Play application
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Summary
7
Working with Integration and Web Services
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Working with Integration and Web Services
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Binding XML data in Scala
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Working with XML and JSON
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Handling Play requests with XML and JSON
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Summary
8
Essential Properties of Modern Applications – Asynchrony and Concurrency
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Essential Properties of Modern Applications – Asynchrony and Concurrency
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The pillars of Concurrency
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The Async library – SIP-22-Async
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Getting started with Akka
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Summary
9
Building Reactive Web Applications
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Building Reactive Web Applications
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Describing reactive applications
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Handling streams reactively
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Experimenting with WebSockets and Iteratees in Play
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Learning from activator templates
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Playing with Actor Room
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Summary
10
Scala Goodies
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Scala Goodies
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Exploring MongoDB
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Scratching the surface of Big Data
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Introducing DSLs in Scala
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Introducing Scala.js
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Final tips
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Summary
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Index
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Index

Summary

In this chapter, we have covered how to start integrating Scala code into a Java codebase as well as how to refactor some of the most common Java constructs into Scala by following some style guidelines. A much more exhaustive list of style recommendations is available at http://docs.scala-lang.org/style/ if you are interested in learning more.

So far we have been mostly addressing the Scala language and syntax. In the next chapter, we are going to introduce the tools that complement it and that are necessary to make our Scala programming both productive and enjoyable.

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Tech Concepts
36
Programming languages
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Scala for Java Developers
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