But how many developers understand how HashMap works internally? A few days ago, I read a lot of the source code for ...

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.

Lambda expressions are the biggest features integrated into Java 8. This functional programming paradigm was, until now, missing from Java. Its inclusion now will only help Java grow in the right ...