Question

In python, I can use eval() to execute user entered code in my program.
Is there anything similar I can do in Groovy? I want to have a SWING UI textbox where the user enters a piece of code that I want to execute?

Thanks,
Hari

Answer 1

There are multiple ways of running Groovy (from both inside Java and Groovy):

http://groovy-lang.org/integrating.html

The quickest method however (for simple scripts), is probably to use the Eval class:

http://groovy-lang.org/integrating.html#integ-eval

Which would let you do something like:

Eval.me( '2 + 2' )

See this page from more examples:

http://mrhaki.blogspot.com/2009/11/groovy-goodness-simple-evaluation-of.html