If you want to master functional programming ... your code — starting with how to use an actual class, and how to create very concise code with a lambda function. The Java Function interface is quite ...

Classes and objects in Java must be initialized before they are ... As you learned in my recent introduction to programming with classes and objects, you initialize an object via the code that ...

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 ...