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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

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
1
Index
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Index

Chapter 3. Understanding the Scala Ecosystem

Learning a new language also means getting acquainted with a new ecosystem of frameworks and tools. The good news is, in Scala, we can largely inherit the very rich and mature set of available tools and libraries from Java. In this chapter, we are going to cover the major novelties and additions to the existing ecosystem that we, as Java developers, are already familiar with.

In this chapter, we will cover the following topics:

  • Code editing environments—also known as IDEs

  • SBT—a tool specific to Scala to build, test, and execute code

  • Utilities as plugins to SBT to integrate with the Java ecosystem

  • Scala Worksheets—a novel approach to interactive programming

  • Working with HTTP and interacting with external web-based services, including the introduction of "for comprehensions"—a useful Scala construct

  • Typesafe Activator—a convenient tool to bootstrap projects quickly

  • Using Scala for scripting

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Programming languages
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Scala for Java Developers
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