Sorting. It’s a classic problem that’s been studied for decades, and it’s a great first step towards “thinking algorithmically.” Over the years, a handful of sorting algorithms have emerged, each ...

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. Programmers frequently need to ...

We start with how sorting algorithms work. Although you don’t need to implement sorting algorithms yourself, it’s useful to know how they work internally. You can skip to the next section if you just ...