How to correct format of the output

[madhuriks]

hi,
i developed on XML file..using DOM..i m getting the values the problem is im not getting the required format...can anyone suggest me..i used jsp page to enter the values in XML file...in my jsp page i used check-boxes and text-boxes..if i click check box and enter the value in text-box...if i clicked one checkbox and i need to get as 'F,10:' and if i enter 2 check boxes i need to get the output as 'F,10:A,5:' and the following is my java code..can anyone help me out...

String[] balrdys = request.getParameterValues("balrdys");
        String balrdysStr = "";
        StringBuffer sb = new StringBuffer();
        String s = ":";
        String F[] = request.getParameterValues("balrdys");
        String Fdays = request.getParameter("balrdys");
        String Adays = request.getParameter("balrdys");
        for (int i = 0; i < balrdys.length; i++) {
        if (balrdysStr == null) {
        balrdysStr += balrdys[i];
        } else {
        balrdysStr += balrdys[i]+ ":";
        }
        }

i m getting the output as


' F,F,:
F,F,:10F,: '



waiting for the reply..