It also supports the creation of powerful scripts and elegant Domain-Specific Languages. It offers bidirectional interoperability with Java classes and libraries, and supports language extensions …

Groovy lists are plain JDK java.util.List, as Groovy doesn’t define its own collection classes. unless you decide to specify otherwise, as we shall see later on.

From the download page, you will be able to download the distribution (binary and source), the Windows installer (a community artifact) and the documentation for Groovy.

Classes do not need to have the same base name as their source file definitions but it is highly recommended in most scenarios (see also the next point about scripts). One source file may …

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, …

The Apache Groovy™ 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.

Start building powerful apps that take advantage of the dynamic scripting capabilities of the Groovy language. This book covers Groovy fundamentals, such as installing Groovy, using …

Even if Groovy creates a class from your script, it is totally transparent for the user. In particular, scripts are compiled to bytecode, and line numbers are preserved.

A closure in Groovy is an open, anonymous, block of code that can take arguments, return a value and be assigned to a variable. A closure may reference variables declared in its …

An interactive command line terminal along with a Swing console for evaluating Groovy scripts and inspecting objects, AST and bytecode information.