Groovy, Java's New Scripting Language

Groovy is a new scripting language for the Java environment. Groovy scripts can be interpreted (for faster development: no compile cycle!) or compiled to Java bytecode (.class format) for faster execution. Groovy accepts most Java constructs but also quite a few of its own.

* 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
* 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 objects and libraries
* compiles straight to Java bytecode so you can use it anywhere you can use Java


See these links for complete information on Groovy:

http://www.darwinsys.com/groovy/

Groovy Is Not Java

Differences from Java

http://groovy.codehaus.org/