Get started with one-dimensional arrays and array variables, then try out five algorithms for searching and sorting arrays in your Java programs ...

Data structures and algorithms in Java, Part 2 introduced a variety of techniques for searching and sorting one-dimensional arrays, which are the simplest arrays. In this tutorial you’ll explore ...

When you create a HashMap, what the Java virtual machine does is it creates a single-dimensional array to hold all of your data, to hold everything that you want to put into your HashMap.