我有问题与java Date
类型。为什么在我的代码days
和days1
都等于88?Android(Java)GregorianCalendar的奇怪行为
GregorianCalendar dateNow = new GregorianCalendar(2014,03,31);
GregorianCalendar dateFirstDay = new GregorianCalendar(2014,01,01);
long diffInMillies = dateNow. getTimeInMillis() - dateFirstDay. getTimeInMillis();
int days = (int) (diffInMillies/(1000*60*60*24));
GregorianCalendar dateNow1 = new GregorianCalendar(2014,04,01);
GregorianCalendar dateFirstDay1 = new GregorianCalendar(2014,01,01);
long diffInMillies1 = dateNow1. getTimeInMillis() - dateFirstDay1. getTimeInMillis();
int days1 = (int) (diffInMillies1/(1000*60*60*24));
(顺便说一句,你意识到你发现“4月31日”和2月1日之间的区别,对吧?在日历中以月份为基准...) –