With advancements like records, sealed classes, and pattern matching, Java is steadily moving toward a more data‑centric style. Learning to use these tools is one of the clearest ways to write modern, expressive Java.

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Java records, finalized in JDK 16, provide a concise way to create immutable data classes by automatically generating constructors, accessors, equals(), hashCode(), and toString() methods. Records reduce boilerplate code significantly and work well with pattern matching, sealed classes, and modern Java features. They excel as data transfer objects, in functional programming, and concurrent scenarios due to their immutability. However, records aren't suitable for mutable state, complex business logic, or inheritance-based designs. The feature has gained widespread adoption across the Java ecosystem with strong framework support.

Introduction to Java records: Simplified data-centric programming in Java