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.

Arrays in Java are variables that contain multiple values. These let you store things like lists of high scores or phone numbers and can also be organized, counted, and manipulated in other ways.

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

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