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

This post explains how to call a method in Java. Learn how to define methods, call them from other classes, and pass arguments!

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

At this point, the Scanner still returns a String, although the String contains only one character. To complete the use case, you must convert this one-character String into a single Java char with ...

While languages like Ruby provide the pertinent information you need, why can't Java provide a decent, useable, toString() method right out of the box?