Generate prime numbers blow some limit using the Sieve of Eratosthenes algorithm. This snippet uses some object abstractions to simplify the algorithm.

A possible implementation of the Sieve of Eratosthenes for generating prime numbers below some limit.

Conway's Game of Life - a solution for GroovyQuiz.com. You can download all of the sources and an executable jar.

Try to create a DSL for a finite state machine.

Inspired by Chris vanBuskirk version on this site and the Ruby article at

http://www-128.ibm.com/developerworks/java/library/j-cb03137/index.html

/**
* GOAL: Write a quick-and-dirty DSL in Groovy that emulates Bruce Tate's
* example "acts_as_statemachine" Ruby code at
* http://www-128.ibm.com/developerworks/java/library/j-cb03137/index.html,
* within 20 minutes or less (i.e. steer clear of MOP-magic engineering ;).
*
* For more context, see the Apr'07 "Symbols" thread on the groovy-user mailing
* list.
*/

Using the SwingX JXMapViewer and using a special tile factory to retrieve Google Maps tiles, from a Groovy SwingBuilder.

This is an example from practice. The domain is a whater flow messure system. I wrote a blog entry where I fully described the evolution of this class - in german.

A GroovyClassLoader demonstration. The given domain is a german water flow meter system; I think, you shouldn't be able to understand the domain, but you should be able to understand, how to load a Groovy class in Java via a GroovyClassLoader.

Recursively iterate over folders and files to check for differences.

This example shows a build script written in Groovy using the AntBuilder.
No more angle bracket to bother you!