Some Thoughts about Incompleteness of Libraries

Selfwritten Util Libraries Today we have really good libraries with our programming languages and they cover a lot of things. The funny thing is, that we usually end up writing some Util-classes like StringUtil, CollectionUtil, NumberUtil etc. that cover some common tasks that are not found in the libraries that we use. Usually it is […]

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Scala Days 2016

I have visited Scala Days in Berlin 2016-06-15 to 2016-06-17. A little remark on the format might be of interest. The conference is scheduled for 3 days. On the first day, there is only one speech, the first keynote, some time in the late afternoon. During Scala Days 2015 the rest of the day was […]

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Linkedin will probably be bought by Microsoft

The social business online network LinkedIn will probably be bought by Microsoft for around 26’200’000’000 USD. Even if Microsoft has become a bit more trustworthy with Nadella then it was with Ballmer it remains an interesting question how much we should trust them concerning our data. The same issue arouse with Skype and other acquisitions […]

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Operator Overloading

When Java was created, the concept of operator overloading was already present in C++. I would say that it was generally well done in C++, but it kind of breaks the object oriented polymorphism patterns of C++ and the usual way was to have several overloaded functions to allow for all n² combinations. In the […]

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Usability „Pearl“

I just found this usability pearl: After entering a credit card number as usual with spaces between the groups of four digits, the web page complained like this: Yes, it is easy to allow spaces. Just match the following regex /^\s*\d{4}\s*\d{4}\s*\d{4}\s*\d{4}\s*$/ and then remove the spaces when processing it, but do not let the user […]

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