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 ...

Java is one of the most in-demand programming languages today and is used for the Internet of Things, APIs, in big data technologies, e-commerce websites, scientific applications, and more. It's even ...

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 ...

If you're not familiar with object-oriented programming, some of the concepts can be hard to understand, especially if you're a longtime procedural language programmer. Follow along as we take a look ...

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 ...

Overview: Avoiding common Java mistakes significantly improves application speed, memory use, and overall stability.Choosing the right data structures and closi ...

A look at some of the best database and RDBMS tools for Java software developers. Learn more about Java and database programming. Java developers often rely on specific database tools to efficiently ...

Community driven content discussing all aspects of software development from DevOps to design patterns. Here are the most important concepts developers must know when they size Java arrays and deal ...

Community driven content discussing all aspects of software development from DevOps to design patterns. There are two ways to implement the Java Scanner import: explicitly reference the ...