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Surfacing Hidden Design: Seeking A Better Alternative To Interrelated Mutable Fields

What is better, a bunch of mutable boolean fields and methods operating on them, or an explicit expression of the individual states and transitions between them? Lets study an example ...
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Sending Email with Java and Akka actors

Akka is a concurrent framework written by Scala. Here I demonstrate sample application to send emails with Akka and implemented in Java. Reasons I decided to use Akka framework other ...
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Scala setup on Windows 7

This article will be dedicated to installation of Scala on PC with Windows 7. In general, doesn’t metter which Windows you have. All steps you need to perform are approximately the ...
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Scala Wonderland: All operations are method calls

I’ve started learning Scala two months ago and I can’t get back to Murakami’s 1Q84 so exciting it is. In the coming series I’d like to share my excitement with you. It won’t ...
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A Scraping Library

As part of a project I’m working on, I needed to get documents from state institutions. And instead of writing code specific for each site, I decided to try creating a “universal” ...
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Scala Wonderland: The functional style

Scala encourages to use a functional style of programming. For programmers coming from imperative world of Java or C# it is the main challenge. The first step is to recognize the difference ...
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Scala setup on Mac OS

Not so long time ago I decide to improve my programming skills with a new programming language. As you can see looking on the topic, the new language is Scala. I don’t want to write ...
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Scala Wonderland: Lists

In functional style methods should not have side effects. A consequence of this philosophy is that List is immutable in Scala. Construction of a List is simple.                   val ...
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Scala Wonderland: Semicolons, singletons and companion objects

In Scala you may usually omit semicolon at the end of a statement. It is required if more statements are on a single line. Unfortunately there are cases when compiler doesn’t undrstand ...
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Scala Wonderland: Case classes and pattern matching

Pattern matching is usually related to text search. In Scala it has much more sophisticated usage. You can write exciting decision logic when used together with case classes. Even after ...
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