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drop down boxes

 
kevin schmidt
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Hi,
I have a JSP page with a form. The form contains three drop down boxes. Now the page output depends on what is selected from the three drop down menus. I want the page to tell which ones have been selected, so the output is formatted properly. TIA.
Kevin
 
Dave Soto
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OK, so what exactly is your question?
 
kevin schmidt
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How do I tell which ones have been selected?
 
Mike Curwen
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umm... they're part of a form, right?

request.getParameter("nameOfDropDownOne") comes to mind
 
kevin schmidt
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yes, i've been using the request.getParameter, but not very good with it. How do I check for null or empty string?
 
ziqiang wu
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if(request.getParameter("dropDownBoxName")!=null)
action....;
Hope it is helpful.
 
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