In Java, polymorphism results in code that is more concise and easier to maintain. This tutorial provides an overview of the four types of Java polymorphism, but our focus is subtype polymorphism.

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 ...

Constructors play a key role in all object-oriented programming languages, and Java is no exception. Every class a Java developer creates needs a constructor. Constructors perform numerous important ...