/**
 * @version 1.0
 * @author Devil_Angel
 * 該程序的功能為實現模擬銀行ATM自動取款機提款,查詢等功能.
 * 
 */

import java.io.*;

/*該類為實現客戶信息及部分功能*/
class Account {
 private String code    =null;   //信用卡號
 private String name    =null;   //客戶姓名
 private String password=null;   //客戶密碼
 private double money   =0.0;   //卡里金額
 
 /********************/
 public Account(String code,String name,String password,double money)
 {
  this.code=code;
  this.name=name;
  this.password=password;
  this.money=money;
 }
 
 protected String get_Code() {
  return code;
 }
 
 protected String get_Name() {
  return name;
 }
 
 protected String get_Password() {
  return password;
 }
 
 public double get_Money() {
  return money;
 }
 
 /*得到剩余的錢的數目*/
 protected void set_Balance(double mon) {
  money -= mon;
 }
}

/**********實現具體取款機功能*********/
class ATM {
 Account act;
// private String name;
// private String pwd;
 
 public ATM() {
  act=new Account("123456","yaochaojie","123456",50000);
 }
 
 /***********歡迎界面***********/
 protected void Welcome()
 {
  String str="---------------------------------";
  System.out.print(str+"\n"+
       "歡迎使用Angel模擬自動取款機程序.\n"+str+"\n");
  System.out.print(" 1.>取款."+"\n"+
       " 2.>查詢信息."+"\n"+
       " 3.>密碼設置."+"\n"+
       " 4.>退出系統."+"\n");
 }
 
 /**********登陸系統**********/
 protected void Load_Sys() throws Exception
 {
  String card,pwd;
  int counter=0;
  
  BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
  do {
   System.out.println("請輸入您的信用卡號:");
   card=br.readLine();
   System.out.println("請輸入您的密碼:");
   pwd=br.readLine();
   
   if(!isRight(card,pwd))
   {
    System.out.println("您的卡號或密碼輸入有誤.");
    counter++;
   }
   else
    SysOpter();
   
  }while(counter<3);
  Lock_Sys();
 }
 
 /**********系統操作**********/
 protected void SysOpter() throws Exception
 {
  int num;
  BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
  System.out.println("請選擇您要操作的項目(1-4):");
  num=br.read();  //num為ASICC碼轉換的整數
  switch(num) {
  case 49: BetBalance(); break;
  case 50: Inqu_Info(); break;
  case 51: Set_Password(); break;
  case 52: Exit_Sys();  break;
  }
  System.exit(1);
 }
 
 /**********信息查詢**********/
 protected void Inqu_Info() {
  System.out.print("---------------------\n"+
       act.get_Code()+"\n"+
       act.get_Name()+"\n"+
       act.get_Money()+"\n"+
       "-----------------------");
 }
 
 /**********取款**********/
 public void BetBalance() throws Exception
 {
  String str=null,str1;
  BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
  do {
   System.out.println("請輸入您要取的數目:");
   str=br.readLine();
   str1=String.valueOf(act.get_Money());
   if(str.compareTo(str1)>0) {
    System.out.println("超過已有的錢數,請重新輸入您要取的數目:");
   }
   else {
    /*操作成功*/
//    act.set_Balance(str);
    System.out.println("取款成功,請收好您的錢.");
    Welcome();
    SysOpter();
   }
  }while(true);
  
 }
 
 /**********判斷卡內是否有錢**********/
 protected boolean isBalance() {
  if(act.get_Money()<0) { 
//   System.out.println("對不起,您的錢數不夠或卡已透支.");
   return false;
  }
  return true;
 }
 
 /********卡號密碼是否正確******/
 protected boolean isRight(String card,String pwd)
 {
  if(act.get_Code().equals(card) && act.get_Password().equals(pwd))
   return true;
  else
   return false;
 }
 
 /**********密碼修改**********/
 protected void Set_Password() throws Exception
 {
  String pwd=null;
  int counter=0;
  BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
  do {
   System.out.println("請輸入舊密碼:");
   pwd=br.readLine();
   if(act.get_Password().equals(pwd))
   {
    do {
     System.out.println("請輸入新密碼:");
     String pwd1=br.readLine();
     System.out.println("請再次輸入新密碼:");
     String pwd2=br.readLine();
     if(!pwd1.equals(pwd2))
     {
      System.out.println("兩次輸入不一致,請再次輸入.");
     }
     else
     {
      System.out.println("密碼修改成功,請使用新密碼.");
      Welcome();
      SysOpter();
     }
    }while(true);
   }
  }while(counter>3);
  
 }
 
 /**********鎖定機器**********/
 protected void Lock_Sys() {
  System.out.println("對不起,您的操作有誤,卡已被沒收.");
  System.exit(1);
 }
 
 /**********結束系統**********/
 protected void Exit_Sys() {
  System.out.println("感謝您使用本系統,歡迎下次在來,再見!");
  System.exit(1);
 }
 
}