Scala and Spring are a promising match. Based on a concrete example, this article shows how the power of Scala combined with the proven and productive Spring framework can be unleashed.

Scala is fun to talk about in the abstract, but using it in a practical way makes the difference between seeing it as a "toy" and using it on the job. In this follow-up article to his introduction to Scitter, a Scala client library for accessing Twitter, Scala enthusiast Ted Neward offers a more interesting and useful set of features for the client library.

The Android operating system provides a powerful, open platform for mobile development. It leverages the power of the Java™ programming language and the Eclipse tools platform. Now you can add the Scala programming language to that mix. In this article, see how you can use Scala as the primary development language on Android, allowing you to write mobile applications using a more-expressive, but also more type-safe, programming language.

Domain-specific languages (DSLs) have become a hot topic; much of the buzz around functional languages is their ability to build such languages. In this latest installment of The busy Java developer's guide to Scala, Ted Neward tackles the problem of transforming textual input into the AST for interpretation by continuing with a simple calculator DSL that demonstrates the power of functional languages for building "external" DSLs. To parse textual input and transform it into the tree structure used by the interpreter in the last article, Ted introduces parser combinators, a standard Scala library designed solely for the task.

This paper shows how thread-based and event-based programming can be unified under a single actor abstraction. Using advanced abstraction mechanisms of the Scala programming language, we implemented our approach on unmodified JVMs. Our programming model integrates well with the threading model of the underlying VM.

Domain-specific languages (DSLs) have become a hot topic; much of the buzz around functional languages is their ability to build such languages. After having established both an AST scheme and a basic front-end parser designed to take text and produce a graph of objects suitable for interpretation, in this article the author thinks it's time to wire everything together into a seamless -- if somewhat trivial at this point -- whole. Then he'll turn around and suggest some extensions that could be made to the language and interpreter.

Code has to be referenced and packaged in the real world, and in this, the seventh article in The busy Java developer's guide to Scala series, Ted Neward corrects an egregious oversight by covering Scala's package and access modifier facilities. Then, he continues the exploration of the functional side of Scala, this time having a quick look at the "apply" mechanism. Recently, reader feedback has led me to realize that I have left behind an important aspect of Scala's language while crafting this series: Scala's package and access modifier facilities. So I'm going to take a moment and cover this before diving into one of the more functional elements of the language, the apply mechanism.

Concurrency quickly became the sizzling topic on the minds of every software developer after major chip manufacturers started to release chips that weren't necessarily faster but were running two or more cores in parallel. In this follow-up to his introduction to Scala concurrency, Ted Neward takes a deeper look at this hot-topic with an examination of actors, those executing entities that pass messages among themselves to coordinate work.

In this installment of the The busy Java developer's guide to Scala, Ted Neward begins to dive into the various concurrency features and libraries provided by the Scala language and environment.

If Scala is a fully JVM-compatible language, then you should be able to use it in various "real-world" environments such as one in which you build servlets and other Web applications. In this article, the author explores using Scala in a servlet environment.