package livedate; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Scanner; public class Livedate { public static void main(String[] args) throws ParseException { System.out.println("please release your birthdate:yyyy-MM-dd"); Scanner sc=new Scanner(System.in); String birthdate=sc.next(); SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd"); Date birthday=sdf.parse(birthdate); Long birthdaySecond=birthday.getTime(); System.out.println(birthday); Date dateC=new Date(); Long Currentsecond=dateC.getTime(); if(birthdaySecond>Currentsecond){ System.out.println("no ret"); }else { Long secondday = Currentsecond - birthdaySecond; int day = (int) (secondday / (60 * 1000 * 60 * 24)); System.out.println(day); } } }