The pattern matching feature in Java lets app developers handle complex data structures such as abstract layers and class hierarchies. Here's how it works.

Learn how to use pattern-matching features in your Java programs, including pattern matching with switch statements, when clauses, sealed classes, and a preview of primitive type pattern matching ...

Java SE 14 (March 2020) introduced a limited form of pattern matching as a preview feature, which becomes a permanent feature in Java SE 16 (March 2021).

Specifically, records, sealed classes, and pattern matching work together to enable easier data-oriented programming in Java.

In the Second Edition of Effective Java, Josh Bloch introduces use of the builder pattern in Item #2 for dealing with constructors that require too many parameters.