You don’t have to create any Book objects to call class ... belongs to the same package (discussed later in the Java 101 series) as the class containing the member that is to be accessed.

However, Java refers to class libraries as packages. This article explores packages; I show you how to create packages of classes and interfaces, how to import (that is, bring into a program ...

To effectively use Unified Modeling Language when developing Java applications, developers must have a thorough understanding of the UML elements and how these elements map to Java. To effectively ...

Java got its start at the cusp of the internet ... A static variable can be shared across instances of a class by creating a single copy. Variables are used as containers that store data.

proposed in JEP 409 and available since Java 17, let developers limit and control how deeply a component's type hierarchy can extend. With sealed classes, a developer can essentially create a ...

Instance main methods and unnamed classes, coming in Java 21, will forever change how developers learn Java and bootstrap applications. Why? They provide a simple, clean and concise syntax to launch ...