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Java Code Geeks are giving away a FREE Sublime Text Editor License

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Struggling with your heavy-weight editor? Then we have something especially for you! We are running a contest giving away a FREE license for the kick-ass Sublime Text Editor. Sublime Text is a sophisticated text editor for code, markup and prose. You’ll love the slick user interface, extraordinary features and amazing performance! Sublime Text is available for OS X, Windows and ...

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FREE Programming books with the WCG Newsletter

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Dear fellow geek, it is with great honor that we announce the launch of Web Code Geeks! This is our sister site, targeted to Web programming developers. Come on, admit it, there is a web developer inside you too, so make sure to check it out. To celebrate this, we have decided to distribute 2 of our books for free. ...

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R: Replacing for loops with data frames

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In my last blog post I showed how to derive posterior probabilities for the Think Bayes dice problem: Suppose I have a box of dice that contains a 4-sided die, a 6-sided die, an 8-sided die, a 12-sided die, and a 20-sided die. If you have ever played Dungeons & Dragons, you know what I am talking about. Suppose I ...

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4 Creative Ways to Test Your Code in Production

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What are some considerations and things to think about if I want to get the most out of testing in my production environment? Production environments are a different beast. No matter how much effort you put into staging environments, you’re only truly getting real life conditions, and therefore real life data, in production. Everyone does some degree of testing in ...

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JavaOne 2015 – Tips And Recommendations For Your Submission

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Everybody knows JavaOne. It feels like, it’s been there forever. And even if we had our ups and downs and the location isn’t exactly what we want it to be and San Francisco is expensive and and and. It is the number one premium conference about all kinds of Java. And being part of the program committee (“Java, DevOps, and ...

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Why “No Source Control” Is Not A Problem

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Because having source control is a solution. Sometimes we get fixated on something that’s missing, and we’re sure that’s the problem. When we can control it, it really isn’t a “real” problem, because it’s easily solved. But in many cases, the solution is out of our control, and we think that if only we had that missing piece of the ...

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Is Your Eclipse Running a Bit Slow? Just Use This Simple Trick!

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You wouldn’t believe it until you try it yourself. I’ve been using the Eclipse Mars developer milestones lately, and I’ve been having some issues with slow compilation. I always thought it was because of the m2e integration, which has never been famous for working perfectly. But then, it dawned upon me when I added a JPA persistence.xml file to run ...

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JUnit: Testing Exceptions with Java 8 and AssertJ 3.0.0

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AssertJ 3.0.0 release for Java 8 makes testing exceptions much easier than before. In one of my previous blog post I described how to utilize plain Java 8 to achieve this, but with AssertJ 3.0.0 much of the code I created may be removed. Warning: this blog post contains mostly the code examples.     SUT – System Under Test ...

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Using Rhino with Java 8

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Java brings Nashorn as new JavaScript implementation for JSR 223 (javax.scripting). While this is certainly great news (Nashorn is way faster than Rhino by directly generating Java code), it comes with some challenges: Nashorn is not 100% compatible with Rhino. Rhino had some extensions and more or less other interpretations on how to combine the Java world with JavaScript. Therefore ...

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Know Your IDE: Eclipse

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When I made the switch from .NET to Java, I naturally had to switch IDEs. With moving to Java, I chose Eclipse. I was fortunate to have a great group of coworkers that took time out of their schedule to share shortcuts and tips to allow me to utilize Eclipse to the fullest extent. One of the first shortcuts I ...

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