public static String getComparedSBQDate(String yxqq,String starttime){        String str = starttime;        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd", Locale.CHINA);        try {            Date d1 = sdf.parse(yxqq);            Date d2 = sdf.parse(starttime);            if(d1.before(d2)){                 str = starttime;            }else{                 str = yxqq;            }        } catch (ParseException e) {            e.printStackTrace();        }        return str;    }