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

Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs.

Sealed classes in Java let developers limit the creation and use of subclasses and preserve the class hierarchy. Here is how sealed classes in Java work.

The Enterprise Edition of the GraalVM, Oracle's 'universal virtual machine,' is now available, free of charge, with a Java SE subscription, Oracle announced.