This post explains how to use classes in Java to build objects and organize your code. Also learn: constructors, static methods, and more!

The functional consumer interface is a key part of the Java Streams API. Here is a simple Consumer interface example to show you how to use this Java component.

Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs.

Get to know the Java persistence standard based on Hibernate and learn how to use JPA to store and manage Java objects in a relational or NoSQL database.

Balancing the fine principles that govern user interface with superior functionality is an art form in itself. Read five tips to getting it right.