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

In Java, once you set the Java array size it is fixed, and it can’t be changed. This puts Java in sharp contrast to other programming languages like JavaScript where arrays resize dynamically.

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

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.