This post shows readers how to create an array in Java. Including: Array Lists, multidimensional arrays, maps, and more.

This Java runtime exception happens when the wrong type of object is placed into an array. In the example below, a BigInteger array is created, followed by an attempt to add a Double. The Double does ...

Inheriting from RuntimeException sets apart checked vs. unchecked exceptions in Java, and that small change can have a big impact on your code.

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