两个时间段相差的小时

 /* //两个时间段相差的小时
  public long diffHours(String startTime,String endTime)
  {
  
   SimpleDateFormat s1 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
   SimpleDateFormat s2 = new SimpleDateFormat("HH:mm:ss");  
   long hours =0;
   try {
   Date startDate=s2.parse(startTime);
   Date endDate=s2.parse(endTime);
   long diff =endDate.getTime() - startDate.getTime();
   long days = diff / (1000 * 60 * 60 * 24);    
   hours = (diff-days*(1000 * 60 * 60 * 24))/(1000* 60 * 60);    
  } catch (ParseException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  return hours;
  }*/