算活了多少天

Java

public static void main(String[] args) throws ParseException {
        System.out.println("输入你的生日yyyy-MM-dd");
        Scanner sc =new Scanner(System.in);
        String str = sc.nextLine();
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        Date birth =sdf.parse(str);
        long birthMs = birth.getTime();//得到生日毫秒数
      //  long now = new Date().getTime();//获取当前毫秒数
        long now = System.currentTimeMillis();
        long dates = (now-birthMs)/24/3600/1000;
        System.out.println("你活了"+dates+"天");

    }