如何使用Joda-Time获取给定月份内的天数？

Question

30 days hath September,
   April, June and November,
 All the rest have 31,
   Excepting February alone
(And that has 28 days clear,
   With 29 in each leap year).

我能否以字母顺序获取此信息？(当然,我不是说这首诗)

Answer 1

如果你有一个DateTime代表月份值的对象,那么它非常简单.您dayOfMonth从该DateTime对象获取属性并获取该属性的最大值.这是一个示例函数:

public static int daysOfMonth(int year, int month) {
  DateTime dateTime = new DateTime(year, month, 14, 12, 0, 0, 000);
  return dateTime.dayOfMonth().getMaximumValue();
}