Thinking outside the box

0001-01-01 1 min read

Of Localized Pattern

Unresolved directive in <stdin> - include::../../../../../../../../src/main/java/nineteen/api/DateTimeFormatterApi.java[tag=ofLocalizedPattern]

The formatted value is Sep 2022. Read more about the pattern template in the API documentation.

Append Localized

Unresolved directive in <stdin> - include::../../../../../../../../src/main/java/nineteen/api/DateTimeFormatterApi.java[tag=appendLocalized]

The formatted value is Sep 2022. Read more about the pattern template in the API documentation.

0001-01-01 1 min read

The following describes selected improvements of the Java API. See the Java 19 release notes.

Unresolved directive in <stdin> - include::CollectionApi.adoc[leveloffset=+1] Unresolved directive in <stdin> - include::DateTimeFormatterApi.adoc[leveloffset=+1]

0001-01-01 1 min read

The following describes selected improvements of the Java JVM. See the Java 19 release notes.

Class data sharing (CDS) now has an option -XX:+AutoCreateSharedArchive to automatically create or update a CDS archive for an application..

0001-01-01 1 min read

The following describes selected improvements of the Java language. See the Java 19 release notes. See Java Language Updates for Java SE 19.

Java 19 is introducing the following language enhancements as developer preview.

JEP 405 is starting with Record Patterns as developer preview
JEP 420 is continuing with Pattern Matching for switch.
JEP 425 is starting with Virtual Threads.
JEP 428 is starting with Structured Concurrency.

0001-01-01 1 min read

The following describes selected improvements of the Java language. See the Java 17 release notes. See Java Language Updates for Java SE 17.

With JEP 409 Sealed Classes are now leaving preview state and are finally available for production.

Java 17 is introducing the following language enhancements as developer preview.

0001-01-01 1 min read

Sealed Class Permits

Unresolved directive in <stdin> - include::../../../../../../../../src/main/java/seventeen/lang/SealedClasses.java[tags=Shape;Ellipsis;Circle;Rectangle]

The new keyword permits declares which subclasses are allowed.
Subclasses may be sealed,
final or,
non-sealed

Sealed Class Subclasses In Same Sourcefile

Unresolved directive in <stdin> - include::../../../../../../../../src/main/java/seventeen/lang/SealedClasses.java[tags=Ellipsis;Circle]

The permits declaration can be omitted when
the subclasses are in the same source file.

0001-01-01 1 min read

Day Period Support

Unresolved directive in <stdin> - include::../../../../../../../../src/main/java/sixteen/api/DayPeriodSupport.java[tag=dayPeriodSupport]

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