小例子--当前时间加三天时间减一秒
public static void main(String[] args) {
?? SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
???? Date currentDate = new Date(System.currentTimeMillis());?
???? Calendar calender = Calendar.getInstance();
??? calender.setTime(currentDate);
??? System.out.println("当天时间:"+currentDate.toLocaleString());
?????calender.add(Calendar.DATE, 3);
?????calender.add(Calendar.SECOND, -1);
?????Date dueTime=null;
???? try {
????? dueTime = simpleDateFormat.parse(simpleDateFormat.format(calender.getTime()).toString());
??????? ?} catch (ParseException e) {
??
????? e.printStackTrace();
???? ?}
??? System.out.println("input into endDate:"+dueTime.toLocaleString());
?????
???
?
?}