I feel so embarrassed that we're not able to help more. Anyway, as a parting gift, try running this code. If you study it and learn how it works, it's the solution to you current problem.
public static void main(String args[]) throws Exception {
String data = "1.5, 2.99, 3, 4000";
String[] arrayOfTokens = data.split(",");
for (String s : arrayOfTokens) {
Double d = Double.parseDouble(s);
System.out.println(d);
}
}