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Showing posts from August, 2015

Making hard choices

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From time to time, we all have to make some hard choices in life. Recently I went through just such a time, when I found myself with 3 different job-offers, that I had to act on relatively swiftly. Now admittedly, this situation belongs to the luxury category of problems, but none the less, it represented a serious decision making challenge to me. None of the jobs were perfect in all aspects (I don't believe such a job exist), so depending of the time of day, I would lean towards one of them, only to change my mind later on that very same day. Clearly, I was in need of a more objective and systematic way of analyzing my options. Prioritization and rating A simple pro-con list did not do much for such a complex scenario, and neither Google nor any of my "self-help literature" had any obvious tools. However, by attacking the problem in a divide-and-conquer fashion, realizing one can't compare apples to oranges, things started to look a bit more clear to me.

Aspects id…

Rejsekortscanner APK

Ønsker du at installere Rejsekortscanner uden om Google Play, måske fordi din enhed ved en fejl er blokeret, så kan du til hver en tid hente nyeste version her. Linket vil blive (forsøgt) holdt up-to-date med seneste release.
Download Rejsekortscanner 2.0

Duck typing in Java

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Duck typing in Java According to wikipedia, duck typing is when "an object's suitability is determined by the presence of certain methods and properties (with appropriate meaning), rather than the actual type of the object". Duck-typing thus is almost the definition of a dynamic language like Ruby, Python, Groovy etc. Unlike a hybrid like i.e. C# 4 (thanks to it's dynamic modifier), Java's type-system does not allow duck-typing - it's an object oriented paradigm where polymorphism is meant as a static modelling mechanism of a type hierarchy. However, the dynamic proxy feature introduced with Java 1.3, does allow us to emulate duck typing. First a disclaimer though, I am far from the first to blog about the subject, even Brian Goetz (now Java's language architect) blogged about it back in 2005. Dynamic Proxy It was back in 2000 that Sun introduced the Dynamic Proxy functionality to JDK 1.3. As the name implies, it caters to the well known Proxy pattern a…