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 ...

Java Reflection provides a lot of information about a given class at runtime; you can easily know all its super classes, implemented interfaces, methods, constructors, fields, and so on. But in ...

The Java Object class is the superclass of all classes in Java. It is the topmost class in the Java class hierarchy, and every class in Java implicitly extends the Object class if it doesn't ...

Polymorphism is one of the key concepts of object-oriented programming (OOP) that allows you to define multiple behaviors for the same method or class. In Java, polymorphism can help you create ...