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Category Archives: Scala
Writing a DSL with Scala Parser Combinators
Scala parser combinators provide a very easy way to construct your own domain specific languages (DSLs). Let’s look at a simple example. Suppose that you work on a large application which produces various report files on a scheduled basis. You … Continue reading
Practical Scala – processing XML
This is the second article in my series Practical Scala. The first article covered the basics of Scala syntax and then moved on to file IO and regular expressions. This article will show you how to read and write XML. … Continue reading
Practical Scala – file IO and regular expressions
Scala is a great language but learning it can seem like you’re battling with too many new concepts to be able to get anything done. The purpose of this article is to show that even with a few lines of … Continue reading
Lift controllers example
I’ve recently put together a basic Lift example, based on an e-Commerce theme. It contains: Product listing Basket Checkout Order confirmation It shows the following techniques: How to write forms and process the response How to submit forms using Lift’s … Continue reading
Why Java developers should be learning Scala
Over the past fifteen years Java has been a phenomenally popular programming language, but it is starting to show its age and programmers are increasingly looking at more modern languages. The purpose of this article is to explain why Scala … Continue reading
Generating Javascript with Scala and Lift
One of the ideas that has become popular in recent years is the concept of writing complex browser GUIs entirely in your server side language, and generating the required javascript. In Java both the Google Web Toolkit and ZK allow … Continue reading
Using Java to download a file that needs authentication
You can easily download files using Java by making a URLConnection. However, if you need to login before accessing the file, how can do this automatically? If you automate the login, how will the code that makes the URLConnection be … Continue reading
Tutorial: Building your first Lift app with sbt
The Simple Build Tool (sbt) is the standard build technology for Scala and Lift applications. However, if you are new to Scala and Lift, trying to learn sbt at the same time can be a little confusing. The aim of … Continue reading