Convert List from java to a dropdown menu in html -

i have output java code in form of list

public class getprojectlist {     final string username = "username";     final string password = "password";     final string projectnames = null;      public getprojectlist() throws urisyntaxexception, interruptedexception, executionexception {         final uri jiraserveruri = new uri("https://jira.xxxx.com");         final jirarestclientfactory restclientfactory = new asynchronousjirarestclientfactory();         final jirarestclient restclient =           restclientfactory.createwithbasichttpauthentication(jiraserveruri,username,password);         final iterable<basicproject> allproject = restclient.getprojectclient().getallprojects().get();         final string projectnames = allproject.tostring();         system.out.println(projectnames);     } } 

i want use output code dropdown menu item. need this. thank you

string projectstohtmloptions(string projectnames,string separator){    stringbuilder sb = new stringbuilder();    sb.append("<select>");    for(string project:projectnames.split(separator)       sb.append("<option value=\""+project+"\">"+project+"</option>");    sb.append("</select>");    return sb.tostring(); }