Java compilers make Java source code into bytecode. Did you know all Java classes start with the word CAFEBABE? Check out this awesome look at the Java magic word.
You've probably used exceptions in Java, but have you used them properly? Generally, exceptions are for exceptional cases. See whether or not you should use checked exceptions, and when and how to use Java exceptions.
Java 8's debut included a neat concurrency too, the CompletableFuture class. Here's an awesome look at CompletableFutures, with a glance at combining and composing tasks.
In programming, traits have been around in Scala and PHP a while, but are relatively new through default methods in Java. Here's a quick example on how to use traits in Java 8!
One thing almost universal to programmers? We're lazy. Rather we're resourceful, and don't want to do the same thing twice. Here's how to implement the Lazy class.
You've got questions, we've got answers: Learn more about Java security manager, including how code compiles, if it runs, and what it displays. Then we'll probe the why and how.
The UX component allows you to display PanelOverlays that "float" on top of a Panel. By showing and hiding the PanelOverlay you can make the PanelOverlay behave much like a "window". Check out the video to see how it's done.
Learn more about the Spring Cloud Config server, where you can centrally manage external properties for applications with support for different environments.
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