How to convert date

Utils.java

public static String modifyDate(String incomeDate) {
        try {
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
            Date d = sdf.parse(incomeDate);
            SimpleDateFormat sdfOut = new SimpleDateFormat("LLL dd, yyyy");
            String dateAsString = sdfOut.format(d);
            return dateAsString;
        } catch (Exception exc) {
            exc.printStackTrace();
        }
        return "";
    }