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

Take advantage of Docker to ease Java development. Learn how to update a running Java codebase (without restarting the container) and to debug into a remotely running containerized Java app.

Learn how to use synchronous and asynchronous callbacks in Java—including callbacks with lambda expressions, CompletableFuture, 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.

Which version of Java should you use in Linux? Learn how to easily switch between different versions with a tutorial from Jack Wallen.

A preview feature in JDK 22 combines the strengths of virtual threads and parallel streams to improve optimization and performance. Here's how it works.

This post explains how to use for loops in Java. Including advanced tricks like nested for loops, break, continue, and labels!