IT Sky Consulting GmbH
How do we use Perl and Java together? Unlike many other languages, that for example run in the JVM, it is not particularly easy to combine them. But that is not the idea. A good starting point is thinking about houses and furniture. While it is perfectly possible to build houses of wood or furniture …
Deutsch When programming in Java, it is kind of part of the language to write classes with attributes and equip these attributes with „getters“ and „setters“. You could do otherwise, but you just don’t. But some criticism is of course allowed. Even if it only applies to the design of future languages or to minor …
„Getters and Setters“ weiterlesen
I watched the conference onlie and picked the following talks: The Effective Developer – Work Smarter, Not Harder by Sven Peters Polyglot, Fault-Tolerant Event-Driven Programming with Kafka, Kubernetes and gRPC by Natan Silnitsky Reacting to an Event-Driven World by Grace Jansen Cause of Death: Hibernate by Thorben Janssen NoSQL Endgame by Otavio Santana, Thodoris Bais, …
„Devoxx UA 2020 (talks)“ weiterlesen
Most conferences have been cancelled, since it is difficult to hold a conference these days. The idea to move the conference online has been obviously around, but it was rejected by most organizers, because it it not the same and the all important chance to meet other people is just not the same. So the …
When we create new objects, we are basically confronted with the need to provide at least one construction pattern. Of course depending on the language we have more or less three ways to go that are commonly available. Traditionally in OO it was mandatory to write setters and getters. In C++ or Java they really …
„Object Creation: Builder vs. Constructor vs. Setter“ weiterlesen
In the Java sphere we often develop the same data class several times. Each layer has its own variant and they are named almost the same, with some prefix or suffix or just the package name to distinguish. The set of attributes is the same (or almost the same), they have setters and getters. Or …
We start recognizing that Serialization is not such a good idea. It is cool and can really work on a wide range of objects, even including complex and cyclic reference graphs. And it was essential for some older Java frameworks like EJB and RMI, which allowed remote access to Java objects and classes. But it …
„JSON instead of Java Serialization: The solution?“ weiterlesen
In Software we often deal with ranges of dates and times. Let us look at it from the perspective of an end user. When we say something like „from 2020-03-07 to 2019-03-10“ we mean the set of all timestamps such that or more accurately: Important is, that we mean to include …
„Ranges of Dates and Times“ weiterlesen
In 2019 I visited Devoxx UA in Kiev and Devoxx BE in Antwerp. Traveling was actually a little story by itself, so for now we can just assume that I magically was at the locations of DevoxxUA and DevoxxBE. In Kiew I attended the following talks: Probabilistic data structures in nutshell (in Ukrainian) [Oleksandra Kulyk] …
„Devoxx UA and Devoxx BE 2019“ weiterlesen
In Java it is possible to declare a method with a „throws“-clause. For certain exceptions, that are not extending „RuntimeException“ or „Error“, this is actually required. What looked like a good idea 25 years ago has proven to be a dead end. I do not know of any other major programming language that opts for …
„Checked Exceptions in Java“ weiterlesen