Yahoo Currency API Java multiple currency requests -

i'm having trouble grabbing multiple currencies @ once yahoo, code produces first request not second.

public double getrate(string from1, string to1, string from2, string to2) {      try {         url url = new url("http://quote.yahoo.com/d/quotes.csv?f=l1&s=" + from1 + to1 + "=x," + from2 + to2 + "=x");         bufferedreader reader = new bufferedreader(new inputstreamreader(url.openstream()));          string line = reader.readline();         if (line.length() > 0) {             return double.parsedouble(line);         }          reader.close();     } catch (ioexception | numberformatexception e) {         system.out.println(e.getmessage());     }      return 0; } 

any thoughts appreciated.

best