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 ...

Here on Hackaday, we’re generally designers of hacks that live in the real world. Nevertheless, I’m convinced that some of the most interesting feats are at the mercy of what’s possible in software, ...

Learn the potential pitfalls of using the repository pattern, including adding an extra layer of abstraction when it's not needed in your software designs Design patterns provide proven solutions to ...