2016.11.18多态

package dome;
//2016.11.18    20153314    严鹏    多态法
import java.util.*;
public class S2{

public static void main(String[] args) {
@SuppressWarnings("resource")
Scanner in=new Scanner(System.in);
ATM atm=new ATM();
int choose=0,num=0,p2=1;
String pw;
System.out.println("输入账户密码：");
pw=in.next();
if(atm.ifPass(pw)){
while(p2==1){
    
    System.out.println("********************");
    System.out.println(" 1.存款：");
    System.out.println(" 2.取款：");
    System.out.println(" 3.转账汇款：");
    System.out.println(" 4.修改密码：");
    System.out.println(" 5.查询余额：");
    System.out.println(" 6.退卡：");
    System.out.println("********************");
    System.out.println("请选择：");
choose=in.nextInt();
switch(choose){
case 1:
System.out.println("输入存款金额：");
num=in.nextInt();
atm.save(num);
System.out.println("存款成功！");
System.out.println("当前余额："+atm.getRest()+"元");
break;
case 2:
System.out.println("请选择：");
int a[]={100,500,1000,1500,2000,5000};
for(int i=0;i<a.length;i++)
System.out.println((i+1)+"."+a[i]+"元");
System.out.println("7.其他");
int ch=in.nextInt();
if(ch>=1&&ch<=6){
if(atm.withdraw(a[ch-1]))
System.out.println("取款成功！");
else
System.out.println("余额不足！");
}
else if(ch==7){
System.out.println("请输入取款金额：");
num=in.nextInt();
if(atm.withdraw(num))
System.out.println("取款成功！");
else 
System.out.println("余额不足！");
}
else 
System.out.println("输入有误！");
System.out.println("当前余额："+atm.getRest()+"元");
break;
case 3:
System.out.println("账户号：");
String s=in.next();
System.out.println("转账金额：");
int i=in.nextInt();
if(atm.transfer(s, i))
System.out.println("转账成功！");
else
System.out.println("转账失败！");
System.out.println("当前余额："+atm.getRest()+"元");
break;
case 4:
System.out.println("输入六位数密码：");
String p=in.next();
atm.setPassword(p);
break;
case 5:
System.out.println("当前余额："+atm.getRest()+"元");
break;

}
}
}
else
System.out.println("密码错误！");
}
}

class PersonalAccount{                 //首先用类封装个人属性
private String passWord="123456";
@SuppressWarnings("unused")
private String number;//银行卡号
private int money=0;
public int getMoney(){return money;}
public void setPw(String s){passWord=s;}
public void addMoney(int x){money+=x;}
public void minusMoney(int x){money-=x;}
public boolean whetherPwTrue(String s){
if(s.equals(passWord))
return true;
else return false;
}
}

abstract class PATM{                //PATM抽象类用来定义需求的抽象方法
public abstract boolean withdraw(int x);
public abstract void save(int x);
public abstract boolean transfer(String s,int x);
public abstract boolean ifPass(String s);
public abstract int getRest();
public abstract void setPassword(String s);
}


class ATM extends PATM{          //ATM继承抽象类来并实现抽象方法
private String numbers[]={"3235635","3256894",
"3265894","6589458"};
private PersonalAccount account=new PersonalAccount();
public boolean withdraw(int x) {
if(x>account.getMoney())
return false;
else{
account.minusMoney(x);
return true;
}
}
public void save(int x) {
account.addMoney(x);
}
public boolean transfer(String s, int x) {

boolean flag=false;
for(int i=0;i<numbers.length;i++)
if(s.equals(numbers[i])) flag=true;
if(x>account.getMoney()) flag=false;
if(x<=account.getMoney()&&flag) account.minusMoney(x);;
return flag;
}
public boolean ifPass(String s) {
return account.whetherPwTrue(s);
}
public int getRest() {
return account.getMoney();
}
public void setPassword(String s) {
account.setPw(s); 
}
}