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Editorial Team
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Asked: 2026-05-23T06:12:26+00:00

HttpServletRequest request; Enumeration params = request.getParameterNames(); How should I declare the return type for

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    HttpServletRequest request;
    Enumeration params = request.getParameterNames();

How should I declare the return type for the above method?

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  1. Editorial Team

    Check out the ServletRequest API (since HttpServletRequest inherits this method from its super interface, ServletRequest) and it will tell you what this method returns: java.util.Enumeration<java.lang.String>, meaning you might wish to try:

    HttpServletRequest request;
Enumeration<String> params = request.getParameterNames();

    Edit 1:
    I’m not sure why you’re getting the first error. Perhaps you must cast the value returned from the method?

    HttpServletRequest request;
Enumeration<String> params = (Enumeration<String>)request.getParameterNames();

    But to be honest, while I”m pretty good at going through most API’s, I don’t do servlets and would appreciate any help from the experts here.

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