java 计算时间差

java计算时间差的标准用法，记录下来方便以后查找

SimpleDateFormat dfs = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");java.util.Date begin = dfs.parse("2004-01-02 11:30:24");java.util.Date end = dfs.parse("2004-03-26 13:31:40");long between=(end.getTime()-begin.getTime())/1000;//除以1000转换成秒long day1=between/(24*3600);long hour1=between%(24*3600)/3600;long minute1=between%3600/60;long second1=between%60/60;System.out.println(""+day1+"天"+hour1+"小时"+minute1+"分"+second1+"秒");