InfoWorld

Static classes and inner classes in Java

Nested classes are classes that are declared as members of other classes or scopes. Nesting classes is one way to better organize your code. For example, say you have a non-nested class (also known as ...
InfoWorld

Class and object initialization in Java

Classes and objects in Java must be initialized before they are used. You’ve previously learned that class fields are initialized to default values when classes are loaded, and that objects are ...
Computerworld

An easy timesaver to create Java classes from JSON data

Writing a Java application (see Android) that consumes a JSON API usually involves mapping the JSON objects to Java classes for use in the software. This is a tedious and repetitive task to say the ...
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 ...
TechRepublic

Create class diagrams with the Unified Modeling Language

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 use ...
TheServerSide

How Java instance main methods and unnamed classes work

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 ...
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 ...