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 ...

Event sourcing is an architectural software pattern that's useful to design complex and distributed systems, particularly those that run many processes concurrently. The pattern captures and stores ...

Get an overview of design patterns, then use what you've learned to evaluate whether the Composite pattern is a good choice for a particular Java use case Numerous strategies have been devised to ...

Design patterns constitute a fundamental component in the architecture of software systems, providing standardised and reusable solutions to recurring design challenges. Originating from seminal works ...