Creating simple data classes in Java traditionally required substantial boilerplate code. Consider how we would represent Java’s mascots, Duke and Juggy: public class JavaMascot { private final String ...

The Observable design pattern is used in many important Java APIs. One well-known example is a JButton that uses the ActionListener API to execute an action. In this example, we have an ActionListener ...

Functional Programming dates all the way back to Lisp in the 1950s. Imperative, procedural, and object-oriented programming each had their long runs as paradigms, but functional programming never ...