java时间方法

         Date startTime = new Date(System.currentTimeMillis());  //获取当前时间
            long s = qzzExpireTime.getTime()-startTime.getTime();  //endeTime和startTime是两个要计算的时间
            double ss = (double)s/86400000;
            double ceil = Math.ceil(ss);
            days = new Double(ceil).intValue();
            if(days < 0){
                days = 0;
            }

Date startTime = new Date(System.currentTimeMillis()); //获取当前时间 long s = qzzExpireTime.getTime()-startTime.getTime(); //endeTime和startTime是两个要计算的时间 double ss = (double)s/86400000; double ceil = Math.ceil(ss); days = new Double(ceil).intValue(); if(days < 0){ days = 0; }