java實(shí)現(xiàn)KFC點(diǎn)餐系統(tǒng)
同學(xué)們應(yīng)該都去麥當(dāng)勞或肯德基吃過(guò)快餐吧?請(qǐng)同學(xué)們參考肯德基官網(wǎng)的信息模擬肯德基快餐店的收銀系統(tǒng),合理使用C++/python/Java,結(jié)合設(shè)計(jì)模式(2種以上)至少實(shí)現(xiàn)系統(tǒng)的以下功能:
1.正常餐品結(jié)算和找零。
2.基本套餐結(jié)算和找零。
3.使用優(yōu)惠劵購(gòu)買餐品結(jié)算和找零。
4.可在一定時(shí)間段參與店內(nèi)活動(dòng)(自行設(shè)計(jì)或參考官網(wǎng)信息)。
5.模擬打印小票的功能(寫到文件中)。
類圖:

建立IFood接口實(shí)現(xiàn)各類食物信息的打?。?/p>
public interface IFood {
/**
* 打印輸出食物信息
* @return
*/
String printMesage();
}
抽象類AbstractBaseFood
public class AbstractBaseFood {
// 類別
protected String kind;
// 數(shù)量
protected int num;
// 價(jià)格
protected float price;
//找零
// 合計(jì)
public float totalPrice()
{
return this.num * this.price;
}
}
各類果汁的基類Baverage:
public abstract class Beverage extends AbstractBaseFood implements IFood
{
public String printMesage()
{
return ("--" + this.kind + "飲料,\t單價(jià):" + this.price + ",\t數(shù)量:" + this.num + ",\t合計(jì):" + this.totalPrice());
}
}
建立Baverage的具體實(shí)現(xiàn)類ChinaBaverage:
public class ChinaBeverage extends Beverage
{
public ChinaBeverage(int num)
{
this.kind = "可樂";
this.price = 6.0f;
this.num = num;
}
}
以此類推分別建立 ChickenWing,F(xiàn)renchFries,Hamburg抽象類和它們的實(shí)現(xiàn)類ChinaChickenWing,FrenchFries,Hamburg
建立抽象工廠IKfcFactory:
public interface IKfcFactory
{
// 生產(chǎn)漢堡
public ChinaHamburg createHamburg(int num);
// 生產(chǎn)薯?xiàng)l
public xtx.FrenchFries createFrenchFries(int num);
// 生產(chǎn)雞翅
public ChinaChickenWings createChickenWings(int num);
// 生產(chǎn)飲料
public ChinaBeverage createBeverage(int num);
}
建立IKfcFactory的實(shí)現(xiàn)類ChinaFactory:
public class ChinaKfcFactory implements IKfcFactory
{
// 生產(chǎn)可樂
public ChinaBeverage createBeverage(int num)
{
return new ChinaBeverage(num);
}
// 生產(chǎn)奧爾良烤雞翅
public ChinaChickenWings createChickenWings(int num)
{
return new ChinaChickenWings(num);
}
// 生產(chǎn)薯?xiàng)l
public ChinaFrenchFries createFrenchFries(int num)
{
return new ChinaFrenchFries(num);
}
// 生產(chǎn)麻辣風(fēng)味雞腿漢堡
public ChinaHamburg createHamburg(int num)
{
return new ChinaHamburg(num);
}
}
建立Customer類實(shí)現(xiàn)食物的選擇和文件存儲(chǔ):
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
{
// 抽象工廠
private IKfcFactory kfcFactory;
// 構(gòu)造方法將抽象工廠作為參數(shù)傳入
public Customer(IKfcFactory kfcFactory2)
{
this.kfcFactory = kfcFactory2;
}
/**
* 訂購(gòu)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("---------------------賬單如下---------------------");
bw.newLine();
for(int i=0;i<5;i++){
bw.write(s[i]);
bw.newLine();
bw.flush();
}
}
// 訂購(gòu)麻辣雞腿漢堡
public float orderHamburg(int num) throws IOException
{
// 獲得麻辣雞腿漢堡
ChinaHamburg hamburg = kfcFactory.createHamburg(num);
// 輸出訂購(gòu)信息
System.out.print(hamburg.printMesage());
s[0]=hamburg.printMesage();
System.out.print("\n");
// 返回總價(jià)
return hamburg.totalPrice();
}
// 訂購(gòu)?qiáng)W爾良烤雞翅
public float orderChickenWings(int num)
{
// 獲得奧爾良烤雞翅
ChinaChickenWings chickenWings = kfcFactory.createChickenWings(num);
// 輸出訂購(gòu)信息
System.out.print(chickenWings.printMesage());
s[1]=chickenWings.printMesage();
System.out.print("\n");
// 返回總價(jià)
return chickenWings.totalPrice();
}
// 訂購(gòu)薯?xiàng)l
public float orderFrenchFries(int num)
{
// 獲得薯?xiàng)l
ChinaFrenchFries frenchFries = (ChinaFrenchFries) ((IKfcFactory) kfcFactory).createFrenchFries(num);
// 輸出訂購(gòu)信息
System.out.print(frenchFries.printMesage());
s[2]=frenchFries.printMesage();
System.out.print("\n");
// 返回總價(jià)
return frenchFries.totalPrice();
}
// 訂購(gòu)可樂
public float orderBeverage(int num)
{
// 獲得可樂
ChinaBeverage beverage = kfcFactory.createBeverage(num);
// 輸出訂購(gòu)信息
System.out.print(beverage.printMesage());
s[3]=beverage.printMesage();
System.out.print("\n");
return beverage.totalPrice();
}
//訂購(gòu)套餐一
public float ordercombo1(int num)
{
// 獲得可樂
ChinaBeverage beverage = kfcFactory.createBeverage(num);
// 獲得麻辣雞腿漢堡
ChinaHamburg hamburg = kfcFactory.createHamburg(num);
s[4]=("--套餐一,\t單價(jià):21,\t數(shù)量:"+num+"\t\t合計(jì):"+(beverage.totalPrice()+hamburg.totalPrice())+"\n");
System.out.print("--套餐一,\t單價(jià):21,\t數(shù)量:"+num+"\t\t合計(jì):"+(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
{
/**
* 主應(yīng)用程序方法
*
* @param args
* @throws IOException
*/
public static void main(String[] args) throws IOException
{
/**
* 定義一個(gè)肯德基(IKfcFactory類型)
*/
IKfcFactory kfcFactory = (IKfcFactory) new ChinaKfcFactory();
Customer customer = new Customer(kfcFactory);
/**
* 開始點(diǎn)餐
*/
// 一個(gè)麻辣雞腿漢堡
Scanner in =new Scanner(System.in);
//System.out.print("請(qǐng)輸入付款金額");
System.out.print("-----現(xiàn)有如下產(chǎn)品-----\n");
System.out.print("--麻辣風(fēng)味漢堡\t單價(jià):15.0.\n--奧爾良風(fēng)味雞翅\t單價(jià):3.0\n--普通風(fēng)味薯?xiàng)l\t單價(jià):8.0\n--可樂飲料\t單價(jià):6.0\n--套餐一(麻辣風(fēng)味漢堡+可樂飲料)\t單價(jià):21\n");
System.out.print("\n-----------------------");
System.out.print("\n請(qǐng)點(diǎn)餐:\n");
System.out.print("請(qǐng)輸入麻辣風(fēng)味漢堡數(shù)量---:");
int a1=in.nextInt();
System.out.print("請(qǐng)輸入奧爾良風(fēng)味雞翅數(shù)量-:");
int a2=in.nextInt();
System.out.print("普通入風(fēng)味薯?xiàng)l數(shù)量------:");
int a3=in.nextInt();
System.out.print("請(qǐng)輸入可樂飲料數(shù)量------:");
int a4=in.nextInt();
System.out.print("請(qǐng)輸入套餐份數(shù)---------:");
int a5=in.nextInt();
System.out.print("\n------賬單如下-----\n");
float hamhurgMoney = customer.orderHamburg(a1);
// 四個(gè)奧爾良烤雞翅
float chickenWingsMoney = customer.orderChickenWings(a2);
// 一包薯?xiàng)l
float frenchFriesMoney = customer.orderFrenchFries(a3);
// 兩杯可樂
float beverageMoney = customer.orderBeverage(a4);
float combo1=customer.ordercombo1(a5);
//
float sum=hamhurgMoney + chickenWingsMoney + frenchFriesMoney + beverageMoney+combo1;
customer.showbill();
System.out.println("總計(jì):" + (sum));
System.out.print("請(qǐng)輸入付款金額:");
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("總計(jì): "+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();
}
}
運(yùn)行結(jié)果展示:

文件存儲(chǔ):

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