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Get all parameters from JSP page

I have n number of text fields named in the form "Question.....". How can I get all the parameters which starts with "question" from the JSP page to the Action?

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<%@ page import = "java.util.Map" %>
Map<String, String[]> parameters = request.getParameterMap();
for(String parameter : parameters.keySet()) {
    if(parameter.toLowerCase().startsWith("question")) {
        String[] values = parameters.get(parameter);
        //your code here
    }
}

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