java计算两个时间差多少小时 多少分钟
public static void main(String[] args) throws ParseException {
Date date = new Date();//当前时间
String otherTime = "2021-11-05 16:00:00";
SimpleDateFormat sf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date time = sf.parse(otherTime);
// 当前时间与其他时间相差的毫秒数
long diff = date.getTime() - time.getTime();
long sec = diff / 1000;
long min = diff / 60 / 1000;
long hours = diff / 60 / 60 / 1000;
System.out.println("相差多少秒" + sec);
System.out.println("相差多少分钟" + min);
System.out.println("相差多少小时" + hours);
}