InfoWorld

Java tip: Fields and methods in Java

The Java tutorial Java 101: Classes and objects in Java introduces the fundamentals of Java classes and objects, including how to declare classes, describe attributes via fields, describe behaviors ...
InfoWorld

Inheritance in Java, Part 2: Object and its methods

Download the source code for example applications in this tutorial. Created by Jeff Friesen. We’ll look at each of these methods and how you can use them to perform special tasks in the context of ...
TheServerSide

Test-Driven Development Series Part 2 - Testing Java Classes with JUnit

Why, of course, by virtually starting up the Java class and pushing the buttons, so to speak. You test a Java class by calling methods on it from another Java class. The following Java source file is ...
TheServerSide

Use sealed classes in Java to control your inheritance

Imagine you are an expert object-oriented Java developer who meticulously crafts code the way an artist cares for their masterpiece. You believe clean code is an absolute necessity. Classes with clear ...
Hosted on MSN

Master Java OOP for cleaner, smarter code

Java’s object-oriented programming (OOP) approach helps developers write cleaner, reusable, and more maintainable code by modeling real-world entities through classes and objects. By mastering OOP ...
ZDNet

Custom Java ResourceBundle classes bring flexibility to your code

Separating localized resources from the source code where they are used is a well-known and approved design. Java's ResourceBundle class from the java.util package provides a straightforward way to ...