Java小技巧：怎么循環日期？

SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
try{
//起始日期
Date start = sdf.parse("2019-01-01");
//結束日期
Date end = sdf.parse("2019-11-27");
Date temp = start;
Calendar calendar = Calendar.getInstance();
calendar.setTime(start);
//打印2019-01-01到2019-11-27的日期
while(temp.getTime()<end.getTime()){
temp = calendar.getTime();
String s = sdf.format(temp);
System.out.println("所得到的日期："+s);
//天數+1
calendar.add(Calendar.DAY_OF_MONTH,1);
}
}catch(Exception e){
e.printStackTrace();
}