How to Assign Random Numbers to an Array in Java. Java has a "Random" class that lets you generate a random number you use to implement calculations in your Java source code.

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.

Don't let the occurrence of a RuntimeException in Java bring your code to a standstill. Here are 10 examples of how to avoid runtime exceptions in Java.

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

We discuss how to work with directories, sub-directories, and traverse them using Java and the DirectoryStream method. Learn more.