The Apache Groovy programming language
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 Apache Groovy programming language - Documentation
The documentation is available as a single-page document, or a PDF, or feel free to pick at a direct section below. You can also browse documentation for other versions.
Groovy Language Documentation - Apache Groovy
provides the ability to statically type check and statically compile your code for robustness and performance. supports Domain-Specific Languages and other compact syntax so your code becomes easy to read and maintain. makes writing shell and build scripts easy with its powerful processing primitives, OO abilities and an Ant DSL
The Apache Groovy programming language - Learn
Learn advanced techniques for working with the Groovy programming language. In this video workshop, presenter and Java consultant Ken Kousen shows you how to create RESTful web services, conduct Unit Tests, apply Groovy's functional programming features, and use Java's Spring Framework in conjunction with Groovy.
The Apache Groovy programming language - Syntax
This chapter covers the syntax of the Groovy programming language. The grammar of the language derives from the Java grammar, but enhances it with specific constructs for Groovy, and allows certain simplifications.
The Apache Groovy programming language - Program structure
Groovy, like Java, provides a special way to import all classes from a package using *, the so-called star import. MarkupBuilder is a class which is in package groovy.xml, alongside another class called StreamingMarkupBuilder. In case you need to use both classes, you can do:
The Apache Groovy programming language - Style guide
Style guide. A Java developer embarking on a Groovy adventure will always have Java in mind, and will progressively learn Groovy, one feature at a time, becoming more productive and writing more idiomatic Groovy code. This document’s purpose is to guide such a developer along the way, teaching some common Groovy syntax style, new operators ...
The Apache Groovy programming language - Semantics
Groovy supports multiple assignment, i.e. where multiple variables can be assigned at once, e.g.: def (a, b, c) = [10, 20, 'foo'] assert a == 10 && b == 20 && c == 'foo'. You can provide types as part of the declaration if you wish: def (int i, String j) = [10, 'foo'] assert i == 10 && j == 'foo'.
Working with collections - Apache Groovy
Feb 4, 2021 · Groovy provides native support for various collection types, including lists, maps or ranges. Most of those are based on the Java collection types and decorated with additional methods found in the Groovy development kit.
The Apache Groovy programming language - Object orientation
Traits can call any dynamic code, like a normal Groovy class. This means that you can, in the body of a method, call methods which are supposed to exist in an implementing class, without having to explicitly declare them in an interface.