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.

Simple Object.toString() on arrays is seldom what we want as it only prints the String representation of the array itself and not of its contents.; Arrays.toString(Object[]) will print a String ...

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