java代码实现输入你出生年月日，计算到今天已经度过了多少天

输入出生年月日，计算到今天为止已经经过了多少天

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Scanner;

public class StringTest {

	public static void main(String[] args) throws ParseException {
		// TODO Auto-generated method stub
		Scanner scanner = new Scanner(System.in);
        System.out.println("请输入出生年份：");
        int year = scanner.nextInt();
        System.out.println("请输入出生月份：");
        int month = scanner.nextInt();
        System.out.println("请输入出生日期：");
        int day = scanner.nextInt();
        String s = year+"年"+month+"月"+day+"日";//出生日期
        //获取日期格式化对象
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日");
        //将指定文本解析为日期对象
        Date d = sdf.parse(s);
        long chusheng = d.getTime();
        long dangqian = new Date().getTime();
        long haomiao = dangqian-chusheng;
        long tian = haomiao/1000/3600/24;
        System.out.println("您已经虚度了"+tian+"天");
	}
}