多平台统一管理软件接口,如何实现多平台统一管理软件接口
263
2023-01-14
java实现KFC点餐系统
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++/python/java,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)。
类图:
建立IFood接口实现各类食物信息的打印:
public interface IFood {
/**
* 打印输出食物信息
* @return
*/
String printMesage();
}
抽象类AbstractBaseFood
public class AbstractBaseFood {
// 类别
protected String kind;
// 数量
protected int num;
// 价格
protected float price;
//找零
// 合计
public float totalPrice()
{
return this.num * this.price;
}
}
各类果汁的基类Baverage:
public abstract class Beverage extends AbstractBaseFood implements IFood
{
public String printMesage()
{
return ("--" + this.kind + "饮料,\t单价:" + this.price + ",\t数量:" + this.num + ",\t合计:" + this.totalPrice());
}
}
建立Baverage的具体实现类ChinaBaverage:
public class ChinaBeverage extends Beverage
{
public ChinaBeverage(int num)
{
this.kind = "可乐";
this.price = 6.0f;
this.num = num;
}
}
以此类推分别建立 ChickenWing,FrenchFries,Hamburg抽象类和它们的实现类ChinaChickenWing,FrenchFries,Hamburg
建立抽象工厂IKfcFactory:
public interface IKfcFactory
{
// 生产汉堡
public ChinaHamburg createHamburg(int num);
// 生产薯条
public xtx.FrenchFries createFrenchFries(int num);
// 生产鸡翅
public ChinaChickenWings createChickenWings(int num);
// 生产饮料
public ChinaBeverage createBeverage(int num);
}
建立IKfcFactory的实现类ChinaFactory:
public class ChinaKfcFactory implements IKfcFactory
{
// 生产可乐
public ChinaBeverage createBeverage(int num)
{
return newhttp:// ChinaBeverage(num);
}
// 生产奥尔良烤鸡翅
public ChinaChickenWings createChickenWings(int num)
{
return new ChinaChickenWings(num);
}
// 生产薯条
public ChinaFrenchFries createFrenchFries(int num)
{
return new ChinaFrenchFries(num);
}
// 生产麻辣风味鸡腿汉堡
public ChinaHamburg createHamburg(int num)
{
return new ChinaHamburg(num);
}
}
建立Customer类实现食物的选择和文件存储:
package xtx.factory.custom;
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import xtx.ChinaBeverage;
import xtx.ChinaChickenWings;
import xtx.ChinaFrenchFries;
import xtx.IKfcFactory;
import xtx.ChinaHamburg;
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
* @throws IOException
*/
private String s[] =new String[5];
public void showbill() throws IOException{
BufferedWriter bw=new BufferedWriter(new FileWriter("D://workspace2Eclipse//xtx//src//xtx//factory//custom//show.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
ChinaHamburg 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
ChinaChickenWings chickenWings = kfcFactory.createChickenWings(num);
// 输出订购信息
System.out.print(chickenWings.printMesage());
s[1]=chichttp://kenWings.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
ChinaFrenchFries frenchFries = (ChinaFrenchFries) ((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
ChinaBeverage 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
ChinaBeverage beverage = kfcFactory.createBeverage(num);
// 获得麻辣鸡腿汉堡
ChinaHamburg hamburg = kfcFactory.createHamburg(num);
s[4]=("--套餐一,\t单价:21,\t数量:"+num+"\t\t合计:"+(beverage.totalPrice()+hamburg.totalPrice())+"\n");
System.out.print("--套餐一,\t单价:21,\t数量:"+num+"\t\t合计:"+(beverage.totalPrice()+hamburg.totalPrice())+"\n");
return beverage.totalPrice()+hamburg.totalPrice();
}
}
MainApp:
package xtx.factory.itf;
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;
import xtx.IKfcFactory;
import xtx.factory.custom.Customer;
public class MainApp
{
/**
* 主应用程序方法
*
* @param args
* @throws IOException
*/
public static void main(String[] args) throws IOException
{
/**
* 定义一个肯德基(IKfcFactory类型)
*/
IKfcFactory kfcFactory = (IKfcFactory) new ChinaKfcFactory();
Customer customer = new Customer(kfcFactory);
/**
* 开始点餐
*/
// 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:15.0.\n--奥尔良风味鸡翅\t单价:3.0\n--普通风味薯条\t单价:8.0\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:21\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);
// 四个奥尔良烤鸡翅
float chickenWingsMoney = customer.orderChickenWings(a2);
// 一包薯条
float frenchFriesMoney = customer.orderFrenchFries(a3);
// 两杯可乐
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://workspace2Eclipse//xtx//src//xtx//factory//custom//show.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();
}
}
运行结果展示:
文件存储:
更多学习资料请关注专题《管理系统开发》。
版权声明:本文内容由网络用户投稿,版权归原作者所有,本站不拥有其著作权,亦不承担相应法律责任。如果您发现本站中有涉嫌抄袭或描述失实的内容,请联系我们jiasou666@gmail.com 处理,核实后本网站将在24小时内删除侵权内容。
发表评论
暂时没有评论,来抢沙发吧~