Before Java 11 we had to use Predicate::negate and it was not possible to use a method reference.
With Predicate::not we can use method references and Predicate::not reads more natural.
Unresolved directive in <stdin> - include::../../../../../../../../src/main/java/eleven/api/PredicateApi.java[tag=not]Unresolved directive in <stdin> - include::../../../../../../../../src/main/java/eleven/api/StringApi.java[tag=lines]With String::lines we can split any multi line String into a stream of lines.
Unresolved directive in <stdin> - include::../../../../../../../../src/main/java/eleven/api/StringApi.java[tag=strip]String::strip is similar to String::trim but with Unicode support.
String also has a stripLeading and stripTrailing method.
Unresolved directive in <stdin> - include::../../../../../../../../src/main/java/eleven/lang/LambdaLocalVariable.java[tag=beforeJava11]Unresolved directive in <stdin> - include::../../../../../../../../src/main/java/eleven/lang/LambdaLocalVariable.java[tag=withTypeBeforeJava11]The type is inferred from the initializer.
With multiple lambda variables we have to use var for all or none.
Also it is not possible to mix var with explicit types.
The following describes selected improvements of the Java language. See the Java 10 release notes.
Unresolved directive in <stdin> - include::LambdaLocalVariable.adoc[leveloffset=+1]
The following describes selected improvements of the Java API. See the Java 15 release notes.
Unresolved directive in <stdin> - include::CharSequenceApi.adoc[leveloffset=+1]
The following describes selected improvements of the Java language. See the Java 15 release notes.
With JEP 378, Text Blocks introduced in Java 13 are now moving from preview state to general availability.
Java 15 is introducing the following language enhancements as developer preview.