(1）
package shiwushangjilianxi;

import java.util.Scanner;

public class shiwushangji_2 {
    String[] word=new String[2];
    String shen;
    String ji;
    String zhu;
   
    public boolean show(){
         boolean con = false;
         String word[]=zhu.split("-");
        if(shen.length()>=16&&(shen.length()<=18)){
            con
 
=true;
        }else{
            System.out.println("身份證必須是16位或18位!");
            con = false;
        }
        if(ji.length()==11){
            con=true;
        }else{
            System.out.println("手機必須是11位!");
            con = false;
        }
       if(word[0].length()==4 && (word[1].length()==7)){
            con
 
=true;
          }else{
           System.out.println("座機號碼區號必須為4位,電話號碼必須為7位!");
           con = false;
        }
        if ((shen.length() >= 16&&shen.length()<=18 ) && ji.length()==11
          && word[0].length()==4 && ( word[1].length()==7)){
            System.out.println(
 
"註冊成功!");
            con=true;
        }else{
            con = false;
        }
        return con;
    }
    public static void main(String[] args) {
        shiwushangji_2  a = new shiwushangji_2();
    Scanner input = new Scanner(System.in);
    boolean flag=false;
    System.out.println("***歡迎進入註冊系統***");
    System.out.println("");
    do{
    System.out.println("請輸入身份證號:");
    a. shen = input.next();
    System.out.println("請輸入手機號:");
    a. ji = input.next();
    System.out.println("請輸入座機號:");
    a. zhu = input.next();
    
     boolean show = a.show();
    
     if(show==true){
         flag=true;
     }
     
    }while (flag==false);
    }
}

第十五章