The most significant addition to the Java language since Sun Microsystems rewrote the collections API for Java 5 is the introduction of Java records. Java records address two significant pain points ...

Java mastery goes beyond syntax—it’s about understanding its principles, applying best practices, and optimizing for performance. From core concepts like arrays and OOP to advanced interview ...

Garage door openers: Don’t leave home without one. Unless, of course, you don’t have a garage. These remotes can be used again and again and reprogrammed as often as you need. You can also buy ...

The Computer Guy of Chicago strikes when you least expect. Sitting in a coffeehouse. Reading your phone on the train. Working out. Waiting for food. Walking down the street. When the Computer Guy ...

Learn how to use advanced techniques like short-circuiting, parallel execution, virtual threads, and stream gatherers to maximize Java stream performance. My recent Java Stream API tutorial introduced ...

Creating simple data classes in Java traditionally required substantial boilerplate code. Consider how we would represent Java’s mascots, Duke and Juggy: public class JavaMascot { private final String ...

Computer science involves much more than writing code. It blends technical knowledge —like programming, algorithms and data systems — with soft skills, such as communication and problem-solving.

The original version of this story appeared in Quanta Magazine. Imagine that someone gives you a list of five numbers: 1, 6, 21, 107, and—wait for it—47,176,870. Can you guess what comes next? If ...

More than a quarter of all computer programming jobs have vanished in the past two years, the worst downturn that industry has ever seen. Things are sufficiently abysmal that computer programming ...