Boost Your JavaDoc with Java 18’s New @snippet Tag – Syntax Highlight & Validation
Java 18 adds the @snippet tag to JavaDoc, offering syntax‑highlighted, validated code examples, superior IDE support, and error checking compared to the older @code tag, making documentation clearer and more interactive for developers.
Java 18 introduces the @snippet tag for JavaDoc, enhancing the older @code tag.
The new tag adds validity checking that reports syntax errors in example code, provides built‑in syntax highlighting, and offers richer IDE support such as code completion and better editing experience.
Example of a simple file server using @snippet:
var addr = new InetSocketAddress(8080);
var server = SimpleFileServer.createFileServer(addr, Path.of("/some/path"), OutputLevel.INFO);
server.start();Validity check with error messages for malformed snippets.
Syntax highlighting directly in the IDE.
Improved code editing features compared with @code.
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Programmer DD
A tinkering programmer and author of "Spring Cloud Microservices in Action"
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