java学习从控制台接收输入字符

 1 package helloword;
 2 import java.util.Scanner;
 3 /**
 4  *
 5  * @author Administrator
 6  */
 7 public class HelloWord {
 8     /**
 9      * @param args the command line arguments
10      */
11     public static void main(String[] args) {
12         // TODO code application logic here
13        Scanner scanner=new Scanner(System.in);
14        System.out.println("请输入你的身分证号：");
15        String line=scanner.nextLine();
16         System.out.println("原来你的身份证号是"+line.length()+"位的数字的啊");
17     }
18     
19 }