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

Get a deep dive into using method references in your Java programs, including stream operations, event listeners, and constructors and factories.

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 Java recursion tutorial shows you how to create a recursive Java factorial function and compares these methods to iterative ones.