1. ID card only supports second-generation 18-digit ID card
2. Judging age
Period class
Post the method class here:
package demo;
import java.time.LocalDate;
import java.time.Period;
public class javaTest {
public static void main(String[] args) {
// TODO Auto-generated method stub
String idNo="320104200006020056";
int year =Integer.valueOf(idNo.substring(6).substring(0, 4)) ;// 得到年份
int month =Integer.valueOf(idNo.substring(10).substring(0, 2));// 得到月份
int day=Integer.valueOf(idNo.substring(12).substring(0,2));//得到日
LocalDate today = LocalDate.now();
System.out.println("Today : " + today);
LocalDate birthDate = LocalDate.of(year, month, day);
System.out.println("BirthDate : " + birthDate);
Period p = Period.between(birthDate, today);
System.out.printf("年龄 : %d 年 %d 月 %d 日", p.getYears(), p.getMonths(), p.getDays());
}
}
Post the console output here:
