Do you need to know how to sort Java objects in a collection, array, or map? Here's how to use the Comparable and Comparator interfaces and avoid ClassCastExceptions.

This post explains how to use loops in Java. Learn for loops, while loops, do while, break, and continue. All without going loopy!

Leverage the NDArray from Deep Java Library (DJL) to write your NumPy code in Java and apply NDArray into a real-world application.

This post explains how to use variables in Java. Learn the primitive types (and what that means) and just why variables are so important for any coding!

Modern applications might need to support millions of users, but OS threading limits present a problem. Here's how Java 21 virtual threads solve it.