How do i populate a dropdown box in jsp?

Question

Can someone write some code that takes 15 string values (passed to the jsp in the URL) and puts them in a dropdown select box (or combo box i think they're called).
I've trawlled around looking on the forums but I cant get my code to work the way I need it to.
Cheers

Answer 1

I'll assume that the values are passed in as parameters named param0, param1 etc:
<select name="mySelect">
<%
for(int idx = 0; ; idx++)
  String param = request.getParameter("param" + idx);
  // We've run out of parameters
  if(param == null)
    break;
%>
  <option value="<%= idx %>"><%= param %></option>
<%
%>
</select>This will generate some HTML along the lines of:
<select name="mySelect">
  <option value="0">Value 0</option>
  <option value="1">Value 1</option>
  <option value="2">Value 2</option>
</select>If your values contain HTML markup (<, >, etc.) it won't work so well but that's easily fixed.
Hopefully it won't be too hard to change this to meet your requirement.
Hope this helps.