Community driven content discussing all aspects of software development from DevOps to design patterns. Java developers have long desired the ability to quickly initialize contents of a List or Set.

Generics make your code more flexible and easier to read, and they help you avoid ClassCastExceptions at runtime. Get started with this introduction to using generics with the Java Collections ...

There are several ways to find duplicates in a Java List, array or other collection class. The following list describes some of the most commonly used approaches: Use a method in the Java Streams API ...

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 ...