In the servlet:
int max = getServletContext().getInitParameter("maximumOrders");

In the JSP:
${initParam.maximumOrders}

In the servlet:
String max = request.getInitParameter("maximumOrders");

In the servlet:
String max = response.getInitParameter("maximumOrders");

In the servlet:
String max = parameters.get("maximumOrders");

In the servlet:
String max = getServletContext().getInitParameter("maximumOrders");

In the servlet:
String max = getInitParameter("maximumOrders");