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 ...

There are only half a dozen classes you really need to master to become competent in the world of functional programming. The java.util.function package contains well over 40 different components, but ...

As an example, the Java Collections Framework includes ... interfaces challenge in a video format. In the following code, both an interface and an abstract class are declared, and the code also ...

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 ...