those classes and interfaces. Examples of Java’s packages include: Only one package directive can appear in a source file. Furthermore, the package directive must be the first code (apart from ...

If you want to master functional programming, the best place to start is with the Java Function interface. This example will show you four different ways to implement this functional interface in your ...

They are regular Java interfaces that comply with all of the traditional rules of syntax. However, they also work with lambda expressions, which is where functional interfaces really shine. Here is ...

This post introduces you to multi-release JAR files. Many third-party Java frameworks and libraries support several versions of the Java platform. For example, as of version 4.0, the Spring ...