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.

Java’s sun.misc.Unsafe class does some special things that are otherwise not allowed. Its powers fall into two general categories: Low-level, pointer-like memory access and allocation ...

Sealed classes make Java an even more powerful and expressive language and set the stage for even more sophisticated techniques such as pattern matching, which we'll explore in a subsequent article. A ...

The 30th anniversary of Java, being celebrated this year, offers a perfect opportunity to reflect on the remarkable changes ...