java 获取上个季度的结束日期
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Get the end date of last quarter
提问by Venkateshwarrao Surabhi
For a given date, how to get the end date of last quarter? I need to run a job, which takes this into account. EDIT: 1st quarter is Jan, Feb, Mar; 2nd is Apr, May, June, so on;
对于给定日期，如何获取上一季度的结束日期？我需要运行一项工作，它考虑到了这一点。编辑：第一季度是一月、二月、三月；2 日是四月、五月、六月，依此类推；
Any help is appreciated. Thanks
任何帮助表示赞赏。谢谢
回答by Roddy of the Frozen Peas
Basically:
基本上：
- Figure out which is the current quarter
- Return the last date of the previous quarter (March 31, June 30, September 30, December 31)
- 找出哪个是当前季度
- 返回上一季度的最后日期（3月31日、6月30日、9月30日、12月31日）
So to figure out which is the current quarter:
int quarter = (myDate.getMonth() / 3) + 1;(Note that getMonth()is deprecated in favor of Calendar.get(Calendar.MONTH).)
因此，要弄清楚哪个是当前季度：（
int quarter = (myDate.getMonth() / 3) + 1;请注意，不推荐使用getMonth()以支持Calendar.get(Calendar.MONTH)。）
Then match the previous quarter to a date.
然后将上一季度与日期相匹配。
int prevQuarter = (myDate.getMonth() / 3);
switch(prevQuarter) {
case 3 :
// return September 30
case 2 :
// return June 30
case 1 :
// return March 31
case 0 : default :
// return December 31
}
回答by cjstehno
This is some pretty old code of mine; however, the getQuarter() method will probably do what you need - or at least give you an idea of how to do it.
这是我的一些相当古老的代码；然而， getQuarter() 方法可能会做你需要的 - 或者至少让你知道如何去做。
Hope this helps.
希望这可以帮助。
C
C
回答by Markus Mikkolainen
well quarters only end in months 12,9,6 and 3. all of these have a static length. so there are only 4 valid end dates. compare your month and if it is 1 or 2 or 3, answer is 31.12 of year-1 , if it is 4,5,6 it is 31.3 of this year, if it is 7,8,9 it is 30.6 of this year. if it is 10.11.12 it is 30.9 this year.
井区仅在 12、9、6 和 3 个月结束。所有这些都具有静态长度。所以只有 4 个有效的结束日期。比较你的月份，如果是 1 或 2 或 3，则答案是 year-1 的 31.12，如果是 4,5,6 则是今年的 31.3，如果是 7,8,9 则是今年的 30.6 . 如果是 10.11.12，那么今年是 30.9。
回答by ToastyMallows
http://www.taggercat.com/docs/api/TaggerCat/com/taggercat/util/DateUtils.html#last90Days%28%29
http://www.taggercat.com/docs/api/TaggerCat/com/taggercat/util/DateUtils.html#last90Days%28%29
public static java.util.Date[] last90Days()
Returns the two dates that represent the start and end of the last quarter
返回代表上一季度开始和结束的两个日期
Returns: the two dates that represent this period
返回：代表这个时期的两个日期
This would help, using these dates and the date given, you can determine the date of the last quarter. If I'm understanding your question correctly that is.
这将有助于使用这些日期和给定的日期，您可以确定上一个季度的日期。如果我正确理解你的问题，那就是。
