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 ...

A Java record is just a regular class that is declared with reduced boilerplate and has some standardized, compiler generated methods. Inline classes, on the other hand, are a fundamentally new ...

Learn to use method overriding and abstract classes to achieve dynamic polymorphism in Java, a feature that allows different implementations of the same method.

A public method should never be called by another public method within the same class hierarchy. It should only be called by other classes via the classes' public interface. Class calls might not be ...

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 ...