Java interfaces are different from classes, ... From a programming perspective, an interface sits between software components. Consider that a method header (method name, ...

Java 8 has a new package, java.util.function, that contains a number of commonly used functional interfaces. Many are expressed using generics, but there are specializations for primitive types.

The move into functional programming in Java can be intimidating. There were a lot of new interfaces introduced in Java 8 to make working with Streams and lambda expressions possible. But, most of ...

Final thoughts on top database tools for Java developers. Tools like Grails, Struts, Java DB and MongoDB provide essential abstractions, interfaces and functionalities that abstract the ...