Learn about java concrete classes and how they are different than interfaces and abstract classes

Learn to add shutdown hooks for JVM applications.

A quick and practical guide to @SuprressWarnings and its parameters.

Learn about the implementation details of the BigInteger class in Java.

Learn why missing annotations won't cause any exceptions at runtime

Camel case text conversion can be achieved by using regular expressions, or via some library functions. We look at a couple of implementations we can add to our own code, and a couple of examples from libraries.

Learn how to use StringTokenizer in Java.

In this tutorial, we'll cover a common use case of using Mockito ArgumentCaptor in our unit tests.

Learn how to use Java Enums to build simple state machines