Classes, fields, methods, constructors, and objects are the building blocks of object-based Java applications. This Java tutorial teaches you how to declare classes, describe attributes via fields ...

Since Java 21, wrapper classes have played an increasingly sophisticated role in Java’s type system. Here’s everything you ...

Learn how to use the Atomic classes in Java to perform thread-safe and lock-free operations on primitive types and references in your multithreading code. Skip to main content LinkedIn.

Learn how to write Java classes that follow the open-closed principle, one of the SOLID design principles. Find out why, how, examples, pitfalls, and testing tips.

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 ...