Package net.jrodolfo.java_evolution.java21

package net.jrodolfo.java_evolution.java21

Examples for features introduced in Java 21.

Java 21 is an LTS release and a major modern-Java milestone. It finalized virtual threads for scalable blocking code, record patterns for deconstructing data, pattern matching for switch for type-based dispatch, and sequenced collections for ordered collection operations. It also included preview work for unnamed patterns/variables, scoped values, and structured concurrency, plus the Key Encapsulation Mechanism API.

Related Packages

Package	Description
net.jrodolfo.java_evolution

Class	Description
KeyEncapsulationMechanismNotes	Explains the Key Encapsulation Mechanism API introduced in Java 21.
PatternMatchingSwitchExamples	Demonstrates pattern matching for switch, finalized in Java 21.
PatternMatchingSwitchExamples.Command	Closed command hierarchy used to demonstrate exhaustive switch handling.
PatternMatchingSwitchExamples.Restart	Restarts a service.
PatternMatchingSwitchExamples.Start	Starts a service.
PatternMatchingSwitchExamples.Stop	Stops a service.
RecordPatternsExamples	Demonstrates record patterns, finalized in Java 21.
RecordPatternsExamples.Point	Point record used by the nested deconstruction example.
RecordPatternsExamples.Rectangle	Rectangle record made of two points.
ScopedValuesPreviewNotes	Explains scoped values as a Java 21 preview feature.
SequencedCollectionsExamples	Demonstrates sequenced collections, introduced in Java 21.
StructuredConcurrencyPreviewNotes	Explains structured concurrency as a Java 21 preview feature.
UnnamedPatternsVariablesPreviewExamples	Demonstrates unnamed patterns and variables as a Java 21 preview feature.
VirtualThreadsExamples	Demonstrates virtual threads, finalized in Java 21.