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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 the code as you would expect. For example following is treated as two statements a and +b: a + b Solution is to…
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Scala Wonderland #1: 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 be yet another step-by-step tutorial. I’ll share features that made me think (IBM should be proud of me). For whatever reason. val…
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Sustainable Automated Testing
Have you ever had a feeling that aed testing is becoming overhead for the project? That the effort to keep them green seems to be higher than the added value? Then maybe what you do is integration testing and not unit testing. Unit testing over integration testing I had the following discussion last week: “Do you…
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Reflection Against OOP Principles
What is so cool about the possibility to access private class members from outside using reflection? Everyone keeps asking you during job interviews what are the basic rules of object oriented programming. This is a mandatory knowledge to pass at least the first round. Encapsulation is one of them. Of course, of course. When you finally get…