Groovy is an object-oriented programming language which means that you write the code based on classes, methods, and fields.

Apache Groovy is a powerful, optionally typed and dynamic language, with static-typing and static compilation capabilities, for the Java platform aimed at improving developer productivity thanks to a concise, familiar and easy to learn syntax.

The main focus is on how Groovy supports the development of domain-specific languages through its metaprogramming features.