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I am embedding Java code in a piece of JSP on a HTML page:
<c:when test="<%=\"F\".equals(result[1])||\"P\".equals(result[1])%>">
The above code works. Now I need to make "F".equals(result[1]) to !("F".equals(result[1])). How do I do that?
You’re not supposed to use scriptlet expressions inside JSTL tag attributes. You should use the JSP EL instead:
Read https://stackoverflow.com/tags/jsp/info for information and links about the JSTL and the EL.