Java interfaces are different from classes, and it’s important to know how to use their special properties in your Java programs. This tutorial introduces the difference between classes and ...

Create packages, import packaged classes and interfaces into your programs, move packages, and encapsulate them in jar files.

Many developers get intimidated when they look at all the new APIs that accept lambda expressions as arguments, and wonder how they’ll ever figure out which Java function to use and what the proper ...

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.

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