如何在几天内获得Java日期？ [重复]

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Is there a way to get the date in java in days only? For instance Jan 1 would equal 1 and Feb 1 would equal 32? Instead of the standard time format yyyy/mm/dd? Perhaps by editing the date formater somehow:

有没有办法在几天内在java中获取日期?例如Jan 1等于1,2月1等于32?而不是标准时间格式yyyy / mm / dd?也许通过某种方式编辑日期格式化程序:

DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy/MM/dd");
LocalDate localDate = LocalDate.now();

4 个解决方案

#1

Use getDayOfYear():

LocalDate localDate = LocalDate.now();
System.out.println(localDate.getDayOfYear());

Returns: the day-of-year, from 1 to 365, or 366 in a leap year

返回:年份,从1到365,或闰年为366

#2

You can use below

你可以在下面使用

Calendar calendar = Calendar.getInstance(); int dayOfYear = calendar.get(Calendar.DAY_OF_YEAR);

日历日历= Calendar.getInstance(); int dayOfYear = calendar.get(Calendar.DAY_OF_YEAR);

#3

int day = LocalDate.getDayOfYear();

#4

try this

SimpleDateFormat format1=new SimpleDateFormat("MM/dd/yyyy");
      Date dt1=format1.parse(pass your date);
      DateFormat format2=new SimpleDateFormat("EEEE"); 
      String finalDay=format2.format(dt1);

#1