A tutorial highlighting the various design patterns in Java. Learn about the benefits and different types of design patterns.

The Design by Contract technique stresses the importance of explicitly specifying the constraints that hold before and after a software component executes.

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.

A preview feature in Java is one that is not yet added permanently even though its design, specification, and implementation are complete. Presently Java has quite a few preview features in the ...