Calendar calendar = Calendar.getInstance(); calendar.setTime(date); calendar.add(Calendar.MONTH, 1);//增加一个月 System.out.println("增加月份后的日期:"+calendar.getTime());
//计算两个日期相差的天数
long intervalMilli = oDate.getTime() - fDate.getTime();
int xiangcha = (int) (intervalMilli / (24 * 60 * 60 * 1000));