new DateTime().withYear(PARTICULAR_YEAR).weekOfWeekyear().getMaximumValue();
@cody评论
两种方法之间的区别 .withWeekOfWeekyear()和.withWeekyear()
例
new DateTime().withDate(2011, 1, 2); 2/1/2011 : Sunday, last day of last week of 2010 (27/12/2010 - 2/1/2011) dayOfWeek : 7weekOfWeekyear : 52 weekyear : 2010
new DateTime().withDate(2011, 1, 3);
3/1/2011 : Monday, first day of first week of 2011 (3/1/2011 - 9/1/2011)dayOfWeek : 1weekOfWeekyear : 1weekyear : 2011
