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 ...

This post explains how to use classes in Java to build objects and organize your code. Also learn: constructors, static methods, and more!

In this tutorial you’ll learn how to work with static member classes and the three types of inner classes in your Java programs. What you’ll learn in this Java tutorial About static classes in ...

Java tutorial for beginners part 3 - Importing classes, try blocks and more! In part 3 of this series we'll learn how to import additional classes and use try blocks and maps.

What is a parameterized constructor in Java? The default constructor is perfect to perform the exact function that it describes: assign defaults. But in real-world Java applications, the program ...

Java currently supports only primitive types and object references. Project Valhalla extends this by introducing inline classes which are new types that exhibit some behaviors of both types of value.

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.

Reference objects aren't just useful when memory is at a premium; they can also be used to provide slick caching abilities to any application.