java---简单的ATM存取系统,

新手练手必备~

密码账户为：

先创建账户类：

package cn.Atm;
/**
 * @author 偶my耶
 */
import java.io.*;

import com.project.project;
public class Account {
    private String number=null;
    private String name=null;
    private String password=null;
    private double money=0.0;
    public Account(String number,String name,String password,double money){
        this.number=number;
        this.name=name;
        this.password=password;
        this.money=money;
    }
    public String getNumber() {
        return number;
    }
    public void setNumber(String number) {
        this.number = number;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
    public double getMoney() {
        return money;
    }
    public void setMoney(double money) {
        this.money = money;
    }
    protected void  sub_Balance(double mon) {
        money-=mon;    
    }
    protected void add_Balancen(double mon) {
        money+=mon;    
    }
}

View Code

然后建立操作类：

里面包含各种操作方法：

  1 package cn.Atm;
  2 /**
  3  * @author 偶my耶
  4  */
  5 import java.io.*;
  6 
  7 import com.project.project;
  8 public class ATM {
  9     Account act;
 10 
 11     public ATM(){
 12     act=new Account("0000", "test", "0000", 2000);
 13     }
 14     /*************欢迎界面*********************/
 15     protected void Welcome(){
 16         String str="~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~";
 17         System.out.print(str+"
");
 18         System.out.print(
 19                 "1.取款"+"
"+
 20                 "2.查询"+"
"+
 21                 "3.存款"+"
"+
 22                 "4.退出"+"
"
 23                 );
 24     System.out.print(str+"
");
 25     }
 26     /************登陆系统********************/
 27     protected void Load_Sys() throws Exception{
 28         String card,pwd;
 29         int counter=0;
 30         BufferedReader  br=new BufferedReader(new InputStreamReader(System.in));
 31         do{
 32             System.out.println("请输入你的卡号");
 33             card=br.readLine();
 34             System.out.println("请输入你的密码");
 35             pwd=br.readLine();
 36             if (!isRight(card,pwd)) {
 37                 System.out.println("你的卡号或密码有误");
 38                 counter++;
 39             }
 40             else {
 41                 Welcome();
 42                 SysOpter();
 43             }
 44         }while(counter<5);
 45         System.exit(1);
 46     }
 47     /**********系统操作提示******************/
 48     protected void SysOpter() throws Exception {
 49         int num;
 50         BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
 51         System.out.println("请选择你要操作的项目(1--4)");
 52         num=br.read();
 53         switch (num) {
 54         case 49:
 55             GetBalance();
 56             break;
 57         case 50:
 58             Inqu_Iofo();
 59             break;
 60         case 51:
 61             AddBalance();
 62             break;
 63         case 52:
 64             Exit_Sys();
 65             break;
 66         }
 67     }
 68     /**********信息查询*******************/
 69     protected void Inqu_Iofo() throws Exception{
 70         // TODO Auto-generated method stub
 71         String str="~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~";
 72         System.out.print(str+"
");
 73         System.out.print(
 74                 "账号"+act.getNumber()+"
"+
 75                 "姓名"+act.getName()+"
"+
 76                 "余额"+act.getMoney()+"
"+
 77                 str+"
"
 78                 );
 79     SysOpter();
 80     }
 81     
 82     /**********存款******************/
 83     public void AddBalance() throws Exception{
 84         // TODO Auto-generated method stub
 85         String str=null,str1;
 86         BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
 87         do {
 88             System.out.println("请输入存款数目");
 89             str=br.readLine();
 90             double qu=Double.valueOf(str).doubleValue();
 91             act.add_Balancen(qu);
 92             System.out.println("存款成功，你的账户余额为"+act.getMoney());
 93             Welcome();
 94             SysOpter();
 95         } while (true);
 96     }
 97     /**********取款********************/
 98     public void GetBalance() throws Exception{
 99         // TODO Auto-generated method stub
100         String str=null,str1;
101         BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
102         do {
103             System.out.println("请输入取款数目");
104             str=br.readLine();
105             double qu=Double.valueOf(str).doubleValue();
106             if(qu>act.getMoney()){
107                 System.out.println("余额不足请重新输入");
108             }
109             else {
110                 act.sub_Balance(qu);
111                 System.out.println("取款成功你的账户余额未"+act.getMoney());
112                 Welcome();
113                 SysOpter();
114             }
115         } while (true);
116     }
117     /*********退出******************/
118     protected void Exit_Sys () {
119         // TODO Auto-generated method stub
120         System.out.println("安全退出！");
121         System.exit(1);
122     }
123     
124     /**********卡号和密码是否正确********************/
125     protected boolean isRight (String card, String pwd) {
126         // TODO Auto-generated method stub
127         if (act.getNumber().equals(card)&&act.getPassword().equals(pwd)) {
128             return true;
129         } else {
130             return false;
131         }
132     
133     }
134     public static void main(String[] args) throws Exception {
135         ATM atm=new ATM();
136 //        atm.Welcome();
137         atm.Load_Sys();
138         }
139 }

ATM

代码仅供参考

运行结果如下