There has been a lot of hype about the buzzword "web scale", and people are going through lengths of reorganising their application architecture to get their systems to "scale". But what is scaling, and how can we make sure that we can scale? Different aspects of scaling The hype mentioned above is mostly about scaling … Continue reading Top 10 Easy Performance Optimisations in Java
Tag: primitive types
Java 8 Friday: The Dark Side of Java 8
At Data Geekery, we love Java. And as we're really into jOOQ's fluent API and query DSL, we're absolutely thrilled about what Java 8 will bring to our ecosystem. Java 8 Friday Every Friday, we're showing you a couple of nice new tutorial-style Java 8 features, which take advantage of lambda expressions, extension methods, and … Continue reading Java 8 Friday: The Dark Side of Java 8
Java Auto-Unboxing Gotcha. Beware!
What do you think that the following code snippet will print? Object o = true ? new Integer(1) : new Double(2.0); System.out.println(o); Yes! It will print: 1.0 What? 1.0? But I have assigned an Integer to my o variable. Why does it print 1.0? It turns out that there is a subtle little specification section … Continue reading Java Auto-Unboxing Gotcha. Beware!
Java 8 will have some support for unsigned integers
This seemed to be good news at first. An announcement by Oracle's Joe Darcy claiming that Java will finally have *some* support for unsigned integers: http://blogs.oracle.com/darcy/entry/unsigned_api This will only be added on an API level, though. Not on a language level including all the expected features: Primitive types Wrapper types Arithmetics Casting rules Boxing / … Continue reading Java 8 will have some support for unsigned integers