XMLGregorianCalendar objects are mutable, and therefore you can simply set any of the date or time fields directly on the object.

XMLGregorianCalendar对象是可以修改的，因此能够直接设置对象的日期或时间字段。

youdao

XMLGregorianCalendar objects are mutable, and therefore you can simply set any of the date or time fields directly on the object.

XMLGregorianCalendar对象是可以修改的，因此能够直接设置对象的日期或时间字段。

youdao