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.

Java's I/O streams provide standardized ways to read and write data. Any object representing a mutable data source in Java exposes methods for reading and writing its data as a stream.

Streams and lambdas give you powerful and elegant ways to work with Java collections. Here’s how to take advantage of them.

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