The book contains a catalog of twenty advanced EJB patterns and provides strategies for mapping application requirements to patterns-driven design, J2EE development best practices, and a collection of ...

Basic pattern matching features (like enhanced instanceof) are available from Java 16 onward, while more advanced capabilities (like record patterns and guarded patterns) came up in Java 21.

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 ...