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This will execute the autogenerated main(String[] args) method in the bytecode which instantiates the Foo class, which extends the
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{link:Script|http://groovy.codehaus.org/apidocs/groovy/lang/Script.html}{link} |
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There's no need to use a Binding if you don't want to; Foo will have a no-argument constructor as well. Though using a Binding you can easily pass in variables. After the end of the script any variables created will be in the Binding for you to access in Java.
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If you just want to write some simple scripts and need some simple functions you can declare functions without writing a class.
One difference from normal class-based groovy is that the def keyword is required to define a function outside of a class.
Here's an example of a simple script with a function. Note that if ever you need things like static or instance variables and so forth then maybe its time to actually write a class 
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