模拟KFC点餐
1.题目
同学们应该都去麦当劳或肯德基吃过快餐吧?请同学们参考肯德基官网的信息模拟肯德基快餐店的收银系统,合理使用C++或Java或Python结合设计模式(2种以上)至少实现系统的以下功能:
1.正常餐品结算和找零。
2.基本套餐结算和找零。
3.使用优惠劵购买餐品结算和找零。
4.可在一定时间段参与店内活动(自行设计或参考官网信息)。
5.模拟打印小票的功能(写到文件中)。
2.程序分析
利用抽象方法模式和工厂方法模式,写一个抽象食物基类,然后写抽象食物类如汉堡、薯条等继承食物基类并且实现打印接口,再实现抽象具体食物类。写一个工厂接口,由这个工厂生产各个食物,在实现工厂接口用来具体生产。由顾客来调用工厂生产食物和模拟打印小票。
3,。部分代码
package xtx;
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;
import xtx.IKfcFactory;
import xtx.Customer;
public class Dos
{
//主界面
public static void main(String[] args) throws IOException
{
// 定义一个肯德基(IKfcFactory类型)
IKfcFactory kfcFactory = (IKfcFactory) new shixianFactory();
Customer customer = new Customer(kfcFactory);
// 一个麻辣鸡腿汉堡
Scanner in =new Scanner(System.in);
//System.out.print("请输入付款金额");
System.out.print("-----现有如下产品-----\n");
System.out.print("--麻辣风味汉堡\t单价:8.0.\n--奥尔良风味鸡翅\t单价:10.0\n--普通风味薯条\t单价:15.0\n--可乐饮料\t单价:6.0\n--套餐一(麻辣风味汉堡+可乐饮料)\t单价:14\n");
System.out.print("\n-----------------------");
System.out.print("\n请点餐:\n");
System.out.print("请输入麻辣风味汉堡数量---:");
int a1=in.nextInt();
System.out.print("请输入奥尔良风味鸡翅数量-:");
int a2=in.nextInt();
System.out.print("普通入风味薯条数量------:");
int a3=in.nextInt();
System.out.print("请输入可乐饮料数量------:");
int a4=in.nextInt();
System.out.print("请输入套餐份数---------:");
int a5=in.nextInt();
System.out.print("\n------账单如下-----\n");
float hamhurgMoney = customer.orderHamburg(a1);
// 奥尔良烤鸡翅
float chickenWingsMoney = customer.orderChickenWings(a2);
// 薯条
float frenchFriesMoney = customer.orderFrenchFries(a3);
// 可乐
float beverageMoney = customer.orderBeverage(a4);
float combo1=customer.ordercombo1(a5);
float sum=hamhurgMoney + chickenWingsMoney + frenchFriesMoney + beverageMoney+combo1;
customer.showbill();
System.out.println("总计:" + (sum));
System.out.print("请输入付款金额:");
int a=in.nextInt();
System.out.print("找零:"+(a-sum));
customer.showbill();
BufferedWriter bw=new BufferedWriter(new FileWriter("d://myjava//KFC自助//KFC.txt",true));
bw.write("总计: "+sum);
bw.newLine();
bw.write("付款:"+a);
bw.newLine();
float y=a-sum;
bw.write("找零:"+y);
bw.newLine();
bw.flush();
bw.close();
}
}
package xtx;
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
public class Customer
{
// 抽象工厂
private IKfcFactory kfcFactory;
// 构造方法将抽象工厂作为参数传入
public Customer(IKfcFactory kfcFactory2)
{
this.kfcFactory = kfcFactory2;
}
//订购食物
private String s[] =new String[5];
public void showbill() throws IOException{
BufferedWriter bw=new BufferedWriter(new FileWriter("d://myjava//KFC自助//KFC.txt",true));
bw.write("---------------------账单如下---------------------");
bw.newLine();
for(int i=0;i<5;i++){
bw.write(s[i]);
bw.newLine();
bw.flush();
}
}
// 订购麻辣鸡腿汉堡
public float orderHamburg(int num) throws IOException
{
// 获得麻辣鸡腿汉堡
shixianHamburg hamburg = kfcFactory.createHamburg(num);
// 输出订购信息
System.out.print(hamburg.printMesage());
s[0]=hamburg.printMesage();
System.out.print("\n");
// 返回总价
return hamburg.totalPrice();
}
// 订购奥尔良烤鸡翅
public float orderChickenWings(int num)
{
// 获得奥尔良烤鸡翅
shixianChickenWing chickenWings = kfcFactory.createChickenWings(num);
// 输出订购信息
System.out.print(chickenWings.printMesage());
s[1]=chickenWings.printMesage();
System.out.print("\n");
// 返回总价
return chickenWings.totalPrice();
}
// 订购薯条
public float orderFrenchFries(int num)
{
// 获得薯条
shixianFrenchFries frenchFries = (shixianFrenchFries) ((IKfcFactory) kfcFactory).createFrenchFries(num);
// 输出订购信息
System.out.print(frenchFries.printMesage());
s[2]=frenchFries.printMesage();
System.out.print("\n");
// 返回总价
return frenchFries.totalPrice();
}
// 订购可乐
public float orderBeverage(int num)
{
// 获得可乐
shixianjudge beverage = kfcFactory.createBeverage(num);
// 输出订购信息
System.out.print(beverage.printMesage());
s[3]=beverage.printMesage();
System.out.print("\n");
return beverage.totalPrice();
}
//订购套餐一
public float ordercombo1(int num)
{
// 获得可乐
shixianjudge beverage = kfcFactory.createBeverage(num);
// 获得麻辣鸡腿汉堡
shixianHamburg hamburg = kfcFactory.createHamburg(num);
s[4]=("--套餐一,\t单价:14,\t数量:"+num+"\t\t合计:"+(beverage.totalPrice()+hamburg.totalPrice())+"\n");
System.out.print("--套餐一,\t\t单价:"+(beverage.totalPrice()+hamburg.totalPrice())+"\t数量:"+num+"\t合计:"+(beverage.totalPrice()*num+hamburg.totalPrice()*num)+"\n");
return beverage.totalPrice()+hamburg.totalPrice();
}
}
4.测试
Txt文件存储模拟打印小票
5.调试