两个时间大小比较

private boolean isTimeOut(TaskDetail taskDetail) {    boolean is = false;    String plantime = taskDetail.getPlanTime();    String nowtime = DateTimeUtils.getSystemCurrentStrDate();    Calendar cNow = Calendar.getInstance();    Calendar cPlan = Calendar.getInstance();    DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");    try {        cNow.setTime(df.parse(nowtime));        cPlan.setTime(df.parse(plantime));    } catch (ParseException e) {        e.printStackTrace();    }    int result = cNow.compareTo(cPlan);    if (result > 0) {        System.out.println("cNow大于cPlan");        is = true;    } else if (result == 0) {        is = false;        System.out.println("cNow相等cPlan");    } else {        is = false;        System.out.println("cNow小于cPlan");    }    return is;}