IT Sky Consulting GmbH
It has already been explained how the Carry Bit works for addition. Now there was interest in a comment about how it would work for negative numbers. The point is, that the calculation of the carry bit does not have any dependency on the sign. The nature of the carry bit is that it is …
„Carry Bit, Overflow Bit and Signed Integers“ weiterlesen
Java uses a nice pragmatic file format for simple configuration tasks and for internationalization of applications. It is called Java properties file or simply „.properties file“. It contains simple key value pairs. For most configuration task this is useful and easy to read and edit. Nested configurations can be expressed by simple using dots („.“) …
„Java Properties Files and UTF-8“ weiterlesen
Bon nadal! — Priecîgus Ziemassvçtkus — З Рiздвом Христовим — Buon Natale — Bella Festas daz Nadal! — С Рождеством — Срећан Божић — καλά Χριστούγεννα — God Jul! — Feliĉan Kristnaskon — ميلاد مجيد — Feliz Navidad — Glædelig Jul — Fröhliche Weihnachten — Joyeux Noël — Hyvää Joulua! — クリスマスおめでとう ; メリークリスマス — …
„Christmas — Weihnachten — Рождество 2017“ weiterlesen
I have visited Scala Exchange („#ScalaX“) in London on 2017-12-14 and 2017-12-15. It was great, better than 2015 in my opinion. In 2016 I missed Scala Exchange in favor of Clojure Exchange. This time there were really many talks about category theory and of course its application to Scala. Spark, Big Data and Slick were …
„Scala Exchange 2017“ weiterlesen
There is this so called „double brace“ pattern for initializing collection. We will see if it should be a pattern or an anti-pattern later on… The idea is that we should consider the whole initializion of a collection one big operation. In other languages we write something like [element1 element2 element3] or [element1, element2, element3] …
„Collection Initializiation in Java“ weiterlesen
We have now two Perls. Perl 5, which has been around for more than 20 years just as the „Perl programming language“ and Perl 6, which has been developed for more than a decade and of which now stable versions exist. The fact, that they are both called „Perl“ is a bit misleading. They are …
„Perl 5 and Perl 6“ weiterlesen
I have attended the Swiss Perl Workshop. We were a group of about 40 people, one track and some very interesting talks, including by Damian Conway. I gave a regular talk and a lightning talk myself. The content of my talk might go into another Blog post in the future. The Perl programming language is …
„Swiss Perl Workshop 2017“ weiterlesen
Shell scripts can be useful for writing small stuff like combining a few commands to pipes or doing a bit of „back ticking“. Even simple loops and if-conditions are possible. And if we want, it is almost a full programming language. A bit hard to tame, maybe, but quite a lot of stuff is possible. …
When designing APIs we should confront ourselves with the question what they should look like, what they should contain and what not. This is not mostly a question about development effort, but about creating a good API that can be used and save us development effort elsewhere. There are always simple answers, but in the …
„Powerful API Functions or Specific API Functions?“ weiterlesen
About a month ago I visted the conference ScalaUA in Kiev. This was the schedule. It was a great conference and I really enjoyed everything, including the food, which is quite unusual for an IT-conference.. 🙂 I listened to the following talks: First day: Kappa Architecture, Juantomás García Molina 50 shades of Scala Compiler, Krzysztof …