JAVA 身份证验证

 

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.util.Date;

 

public class JavaString {

 

       public static void main(String[] args) {

              try {

                     Date time = new Date();

                     int year = time.getYear();

 

                     String str;

                     InputStreamReader stdin = new InputStreamReader(System. in ); // 键盘输入

                     BufferedReader bufin = new BufferedReader(stdin);

 

                     System. out .print( "Input ：    " );

                     str = bufin.readLine();

                     if (str.length() == 18) {

                            String b = str.substring(8, 10);

                            int c = Integer.parseInt(b);

                            int age = year - c;

                            System. out .println( "Age ：    " + age);

                     } else {

                            System. out .println( "Input must equales 18 wei!" );

                     }

              } catch (IOException E) {

                     System. out .println( " 发生 I/O 错误 !!!" );

              }

       }

}