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

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

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

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