Miscellany

  public void printCalendarByID(HttpServletRequest request, HttpServletResponse response)            throws SQLException, IOException {        String id = request.getParameter("id");        CRSManager c = new CRSManager();        if(!id.equals("")){            if(c.isCorrectID(dbcon,id)){            printTop(request,response);            PrintWriter out = response.getWriter();            Date d2 = c.getMaxDate(dbcon, id);            Date d1 = c.getMinDate(dbcon, id);            SimpleDateFormat sf = new SimpleDateFormat("MMMM");            GregorianCalendar gc1 = new GregorianCalendar();            GregorianCalendar gc2 = new GregorianCalendar();            GregorianCalendar begin = new GregorianCalendar();            gc1.setTime(d1);            gc2.setTime(d2);            begin.setTime(d1);            for(;!gc1.equals(gc2); gc1.set(Calendar.DAY_OF_MONTH,gc1.get(Calendar.DAY_OF_MONTH)+1)){                if(gc1.get(Calendar.DAY_OF_MONTH)==1){                    out.println("<br>"+gc1.get(Calendar.MONTH)+"<br>");                    out.println("<table width=\"807\" border=\"1\">\n" +                            "  <tr>\n" +                            "    <td>Monday</td>\n" +                            "    <td>Tuesday;</td>\n" +                            "    <td>Wednesday;</td>\n" +                            "    <td>Thursday</td>\n" +                            "    <td>Friday</td>\n" +                            "  </tr>");                } else if(gc1.get(Calendar.DAY_OF_WEEK)==29 || gc1.get(Calendar.DAY_OF_WEEK)==31 ||                gc1.get(Calendar.DAY_OF_WEEK)==30 || gc1.get(Calendar.DAY_OF_WEEK)==28){                    out.println("</tr></table>");                }            }            printBottom(request,response);            } else {               printTop(request,response);            PrintWriter out = response.getWriter();            out.println("<span class=\"message\">You entered an invalid ID number please go back</span>");            printBottom(request,response);             }    } else {            printTop(request,response);            PrintWriter out = response.getWriter();            out.println("<span class=\"message\">You entered an invalid ID number please go back</span>");            printBottom(request,response);        }        }