Groovy

Ok, I never looked into this, but I read slide presentation on it and it seemed cool. It's basically a Java scripting language. You can run a shell from the command line and create objects, run methods, etc.

This is what I did in the first 2 minutes:
Y:\>groovysh

Lets gets Groovy!

Hit carriage return twice to execute a command

The command 'quit' will terminate the shell

groovy> help

groovy>

null

groovy> "s"+"t"

groovy>

'st'

groovy> 1+2

groovy>

3

groovy> ("S"+"t").toLowerCase()

groovy>

'st'

Of course there's a lot more to it, and you can use it for a lot more than just toying with the shell.

http://groovy.codehaus.org/