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 ...

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Sealed classes in Java let developers limit the creation and use of subclasses and preserve the class hierarchy. Here is how sealed classes in Java work.

Flexible main methods and anonymous main classes would help students write basic programs much more concisely and reduce the ceremony of writing simple programs. Java would become easier for ...