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can call a java function in a JSP document?

 
Anonymous
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I have something like this:

Can I call the function, foo, where I currently have
?
I need to pass in whatever is "in" to foo and set "value" to whatever is returned by the foo. If this is allowed, what is the syntax?
Thanks in advance.
 
Anonymous
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Where you see the two "graemlins" above, the code is:
 
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