https://blog.jetbrains.com/idea/2019/07/intellij-idea-2019-2-java-13-preview-features-profiling-tools-services-tool-window-and-more/
Java 13 is coming out in September, and, as usual, IntelliJ IDEA is
ready for it. The IDE provides support for the Switch Expressions
preview feature (JEP 354) and its new syntax, and for the Text Blocks preview feature (JEP 355).
Yes, Java will soon support multi-line String literals and more compact and versatile switch statements/expressions. Wahoo!