JEP 455, Primitive Types in Patterns, instanceof, and switch (Preview), has been promoted from Proposed to Target to Targeted for JDK 23. This JEP, under the auspices of Project Amber, proposes to enh ...

Java primitives and performance When Java was first introduced in the 1990s, it was decided that all user-created types would be classes. Only a handful of primitive types were put aside as special.