java获取一周的给定日期 [英] java get week of year for given a date

问题描述

如何获得一个给定日期的一周的一周？
我试了下面的代码：

how can I get a week of the year given a date? I tried the following code:

  Calendar sDateCalendar = new GregorianCalendar();
  sDateCalendar.set(Integer.parseInt(sDateYearAAAA), Integer.parseInt(sDateMonthMM)-1, Integer.parseInt(sDateDayDD));
  System.out.format("sDateCalendar %tc\n", sDateCalendar);        
  iStartWeek = sDateCalendar.getWeekYear();
  System.out.println("iStartWeek "+iStartWeek+ " "+sDateCalendar.WEEK_OF_YEAR);

我获得：
sDateCalendar lun apr 23 11:58:39 CEST 2012
iStartWeek 2012 3

and i obtain: sDateCalendar lun apr 23 11:58:39 CEST 2012 iStartWeek 2012 3

正确的一周是17.有人可以帮我吗？

while the correct week of year is 17. Can someone help me ?

推荐答案

您正在使用sDateCalendar.WEEK_OF_YEAR，这是静态整数WEEK_OF_YEAR，请参阅java.util.Calendar类的源代码：

You are using sDateCalendar.WEEK_OF_YEAR, which is the static integer WEEK_OF_YEAR, see the source of the java.util.Calendar class:

public final static int WEEK_OF_YEAR = 3;

要获取周数，您应该使用：

To get the week number, you should be using:

sDateCalendar.get(Calendar.WEEK_OF_YEAR);

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