package test;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Scanner;
/**
* 你来到人间多少天了
* @author gaofuzhi
*/
public class CalendarDemo {
public static void main(String[] args) {
System.out.println("请按照如下格式“yyyy-MM-dd”输入您的出生年月日：");
Scanner input = new Scanner(System.in);
String brithDate = input.next();
try {
long allDay2 = calculateDay(brithDate);
System.out.println("您已经来人间"+allDay2+"天了");
} catch (ParseException e) {
e.printStackTrace();
}
input.close();
}
public static long calculateDay(String date) throws ParseException{
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");
Date newDate = simpleDateFormat.parse(date);
Calendar calendar = Calendar.getInstance();
long nowTime = calendar.getTimeInMillis();
calendar.setTime(newDate);
long beforeTime = calendar.getTimeInMillis();
long time = nowTime - beforeTime;
long allDay = time/1000/60/60/24;
return allDay;
}
}
