2017-11-26 活了多少天

package 年月日;

import java.text.ParseException;

import java.text.SimpleDateFormat;

import java.util.Date;

public class 活了多少天 {

public static void main(String[] args) throws ParseException {

  String birthday = "1994-06-04";

  String now = "2017-11-25";

  SimpleDateFormat SDF = new SimpleDateFormat("yyyy-MM-dd");

  Date d1 = SDF.parse(birthday);

  Date d2 = SDF.parse(now);

  long long1 = d1.getTime();

  long long2 = d2.getTime();

  long long3 = long2 - long1;

  System.out.println(long3 / 1000 / 60 / 60 / 24);

}

}