Interested in Java functional programming? The first place you need to start, especially if you use the Streams API, is with this Java Function interface example.

Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs.

Preparing for a java job interview? Check out some most asked Java collection interview questions for fresher and experienced candidates.

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More typically, you'd use a JEE application to interface with JMS/MQ but this happened to be used as an integration piece where an application could export messages but had no native MQ or JMS ...

Java lets you declare interfaces inside of classes. Once declared, an interface is automatically a static member of the class. There is no need to declare the interface with the static keyword.