public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { String amount = request.getParameter("amount"); String amount2 = request.getParameter("amount2"); String amount3 = request.getParameter("amount3"); Integer posotita = Integer.parseInt(amount); Integer posotita2 = Integer.parseInt(amount2); Integer posotita3 = Integer.parseInt(amount3); HttpSession session = request.getSession(); if (session.isNew()) { request.setAttribute("sessionVal", "this is a new session"); } else { request.setAttribute("sessionVal", "Welcome Back!"); } double total = ((posotita * 18.50) + (posotita2 * 6.95) + (posotita3 * 1.29)); session.setAttribute("totalVal", total); request.setAttribute("currency", total); request.setAttribute("from", amount); request.setAttribute("from2", amount2); request.setAttribute("from3", amount3); RequestDispatcher view = request.getRequestDispatcher("index.jsp"); view.forward(request, response); }