Create packages, import packaged classes and interfaces into your programs, move packages, and encapsulate them in jar files.

The interfaces java.util.List and java.util.Set extend Collection, representing more specialized data structures and adding more operations and/or constraints. List represents a sequence of ...

Since Java 21, wrapper classes have played an increasingly sophisticated role in Java’s type system. Here’s everything you need to know about updates for virtual threads, pattern matching, and ...