- is an agile and dynamic language for the Java Virtual Machine
- builds upon the strengths of Java but has additional power features inspired by languages like Python, Ruby and Smalltalk
- makes modern programming features available to Java developers with almost-zero learning curve
- provides the ability to statically type check and statically compile your code
- 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
- increases developer productivity by reducing scaffolding code when developing web, GUI, database or console applications
- simplifies testing by supporting unit testing and mocking out-of-the-box
- seamlessly integrates with all existing Java classes and libraries
- compiles straight to Java bytecode so you can use it anywhere you can use Java
Experience Groovy 2.0
Groovy 2.0 is the latest major and stable version of the popular dynamic language for the JVM. To learn more about the novelties, make sure to read the detailed article on InfoQ. In a nutshell, Groovy 2.0 adds static type checking to let the compiler tell you about the correctness of your code, static compilation for the performance of the critical parts of your application, modularity by splitting the Groovy JAR into smaller feature-oriented modules as well as allowing you to create your own extension modules, JDK 7 Project Coin syntax enhancements so that Groovy marries itself well with Java, and JDK 7 Invoke Dynamic integration to benefit from the dynamic language support of the JVM.
"Groovy is like a super version of Java. It can leverage Java's enterprise capabilities but also has cool productivity features like closures, builders and dynamic typing. If you are a developer, tester or script guru, you have to love Groovy."
A simple hello world script:
A more sophisticated version using Object Orientation:
Leveraging existing Java libraries:
On the command line:
Latest news [more]
The Groovy development team is happy to announce the joint releases of the Groovy 2.4.1 and Groovy 2.3.10 of the Groovy programming language for the Java platform.
Both releases are bug fix releases, and while Groovy 2.4.1 is the latest official stable branch, we thought it might be helpful to some projects who are still on the 2.3.x line to get a final release for that branch. But going forward, the 2.3.x branch won’t see any upcoming release.
You can learn more about all the tickets closed by reading:
For reference, you can also read the release notes of Groovy 2.4 if you haven't had a chance to since the announcement.
Head over to the download section of the new Groovy website to download the binary distribution, or update your dependencies accordingly with those new version numbers.
Thanks a lot for all those who contributed to this release!