在java中两个时间相减

转载出处：/pengyu1801/article/details/50408444

间隔=()-();得出来的是毫秒数.
除1000是秒,再除60是分,再除60是小时.

SimpleDateFormat myFormatter = new SimpleDateFormat( "yyyy-MM-dd ");
date= ( "2003-06-01 ");
mydate= ( "2003-05-01 ");
long day=(()-())/(24*60*60*1000);
( "相差的日期: " + day);