Add values to a combo box dynamically in servlets

[divsok]

how can i add values of each registered name to a combo box in a servlet dynamically and get each values from it ? i have an ArrayList of each registered name.

[divsok]

the code so far

HashMap list= (HashMap)getServletContext().getAttribute("NameAndPasswordList");
String name = (String)request.getAttribute("name");
out.print("you are login as "+name+"");

out.print("");
out.print("");

Set names = list.keySet();
ArrayList namelist = null;
for(String addName: names){
namelist.add(addName);
}