java时间相减，得到天数

public static  void main(String args[]){
	SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
	try {
		Date date1  = sdf.parse("2010-02-01 00:00:00");
		Date date2= sdf.parse("2010-02-15 00:00:00");
		long day = (date1.getTime()-date2.getTime())/(24*60*60*1000)>0 ? (date1.getTime()-date2.getTime())/(24*60*60*1000):(date2.getTime()-date1.getTime())/(24*60*60*1000);
	    System.out.println(day);
	} catch (ParseException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
	
}

    输出为14。