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 Java class loader. Everything in Java is a class, and all Java applications are built from classes. An application could consist of one class or thousands.

However, there is one minor complexity the Java Scanner class add into the software development mix. In order to use the Java Scanner class in your code, you must either fully reference the java.util ...

The release of Java SE 15 in Sept 2020 will introduce "sealed classes" (JEP 360) as a preview feature. A sealed class is a class or interface which restricts which other classes or interfaces may ...

A Java constructor has the same name as the class. A constructor in Java does not have a return type. A constructor can't be static, volatile or final. Why are Java constructors needed? The goal of a ...