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 ...

The more familiar you are with Object and its methods, the more you can do with your Java programs.

Class Library and Application Framework Implementation Once the design of the class library/application framework has been established and reviewed (typically through a peer-review process), the ...

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.

Java Console class input and ouput The easiest way to garner user input in a Java program is to use the System’s Console class. Introduced in Java 6, Java’s System Console class provides two simple ...