How to know if the HttpServletRequest getParameter() method result is coming from a query parameter,x-www-form-url-encoded or multipart/form-data? [duplicate]

I'm working on a plain java project and I'm using Tomcat 10 as a dependency.What options do I have in java servlets to know if the getParameter() method result is coming from a query parameter,x-www-form-url-encoded or multipart/form-data ?

@MultipartConfig()public class HelloServlet extends HttpServlet {    @Override    protected void doPost(HttpServletRequest  request,HttpServletResponse response){            String param = request.getParameter("username");            response.setContentType("text/plain");             PrintWriter pw = response.getWriter();            pw.println(param);                   pw.close();     }}