First class functions. Beyond the pure function ideal, in actual coding practice functional programming hinges on first class functions. A first class function is a function that is treated as a ...

We should point out that Java is considered a high-level programming language because both humans and computers can read it. It relies heavily on English-based commands, which is one reason why it ...

Sealed classes make Java an even more powerful and expressive language and set the stage for even more sophisticated techniques such as pattern matching, which we'll explore in a subsequent article. A ...