這篇文章主要為大家詳細介紹了java實現KFC點餐系統,模擬肯德基快餐店的收銀系統,具有一定的參考價值,感興趣的小伙伴們可以參考一下
同學們應該都去麥當勞或肯德基吃過快餐吧?請同學們參考肯德基官網的信息模擬肯德基快餐店的收銀系統,合理使用C++/python/Java,結合設計模式(2種以上)至少實現系統的以下功能:
1.正常餐品結算和找零。
2.基本套餐結算和找零。
3.使用優惠劵購買餐品結算和找零。
4.可在一定時間段參與店內活動(自行設計或參考官網信息)。
5.模擬打印小票的功能(寫到文件中)。
類圖:
建立IFood接口實現各類食物信息的打印:
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public
interface
IFood {
/**
* 打印輸出食物信息
* @return
*/
String printMesage();
}
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抽象類AbstractBaseFood
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public
class
AbstractBaseFood {
// 類別
protected
String kind;
// 數量
protected
int
num;
// 價格
protected
float
price;
//找零
// 合計
public
float
totalPrice()
{
return
this
.num *
this
.price;
}
}
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各類果汁的基類Baverage:
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public
abstract
class
Beverage
extends
AbstractBaseFood
implements
IFood
{
public
String printMesage()
{
return
(
"--"
+
this
.kind +
"飲料,\t單價:"
+
this
.price +
",\t數量:"
+
this
.num +
",\t合計:"
+
this
.totalPrice());
}
}
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建立Baverage的具體實現類ChinaBaverage:
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public
class
ChinaBeverage
extends
Beverage
{
public
ChinaBeverage(
int
num)
{
this
.kind =
"可樂"
;
this
.price =
6
.0f;
this
.num = num;
}
}
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以此類推分別建立 ChickenWing,FrenchFries,Hamburg抽象類和它們的實現類ChinaChickenWing,FrenchFries,Hamburg
建立抽象工廠IKfcFactory:
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public
interface
IKfcFactory
{
// 生產漢堡
public
ChinaHamburg createHamburg(
int
num);
// 生產薯條
public
xtx.FrenchFries createFrenchFries(
int
num);
// 生產雞翅
public
ChinaChickenWings createChickenWings(
int
num);
// 生產飲料
public
ChinaBeverage createBeverage(
int
num);
}
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建立IKfcFactory的實現類ChinaFactory:
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public
class
ChinaKfcFactory
implements
IKfcFactory
{
// 生產可樂
public
ChinaBeverage createBeverage(
int
num)
{
return
new
ChinaBeverage(num);
}
// 生產奧爾良烤雞翅
public
ChinaChickenWings createChickenWings(
int
num)
{
return
new
ChinaChickenWings(num);
}
// 生產薯條
public
ChinaFrenchFries createFrenchFries(
int
num)
{
return
new
ChinaFrenchFries(num);
}
// 生產麻辣風味雞腿漢堡
public
ChinaHamburg createHamburg(
int
num)
{
return
new
ChinaHamburg(num);
}
}
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建立Customer類實現食物的選擇和文件存儲:
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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;
// 構造方法將抽象工廠作為參數傳入
public
Customer(IKfcFactory kfcFactory2)
{
this
.kfcFactory = kfcFactory2;
}
/**
* 訂購食物
* @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);
// 輸出訂購信息
System.out.print(hamburg.printMesage());
s[
0
]=hamburg.printMesage();
System.out.print(
"\n"
);
// 返回總價
return
hamburg.totalPrice();
}
// 訂購奧爾良烤雞翅
public
float
orderChickenWings(
int
num)
{
// 獲得奧爾良烤雞翅
ChinaChickenWings chickenWings = kfcFactory.createChickenWings(num);
// 輸出訂購信息
System.out.print(chickenWings.printMesage());
s[
1
]=chickenWings.printMesage();
System.out.print(
"\n"
);
// 返回總價
return
chickenWings.totalPrice();
}
// 訂購薯條
public
float
orderFrenchFries(
int
num)
{
// 獲得薯條
ChinaFrenchFries frenchFries = (ChinaFrenchFries) ((IKfcFactory) kfcFactory).createFrenchFries(num);
// 輸出訂購信息
System.out.print(frenchFries.printMesage());
s[
2
]=frenchFries.printMesage();
System.out.print(
"\n"
);
// 返回總價
return
frenchFries.totalPrice();
}
// 訂購可樂
public
float
orderBeverage(
int
num)
{
// 獲得可樂
ChinaBeverage beverage = kfcFactory.createBeverage(num);
// 輸出訂購信息
System.out.print(beverage.printMesage());
s[
3
]=beverage.printMesage();
System.out.print(
"\n"
);
return
beverage.totalPrice();
}
//訂購套餐一
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:21,\t數量:"
+num+
"\t\t合計:"
+(beverage.totalPrice()+hamburg.totalPrice())+
"\n"
);
System.out.print(
"--套餐一,\t單價:21,\t數量:"
+num+
"\t\t合計:"
+(beverage.totalPrice()+hamburg.totalPrice())+
"\n"
);
return
beverage.totalPrice()+hamburg.totalPrice();
}
}
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MainApp:
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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
{
/**
* 主應用程序方法
*
* @param args
* @throws IOException
*/
public
static
void
main(String[] args)
throws
IOException
{
/**
* 定義一個肯德基(IKfcFactory類型)
*/
IKfcFactory kfcFactory = (IKfcFactory)
new
ChinaKfcFactory();
Customer customer =
new
Customer(kfcFactory);
/**
* 開始點餐
*/
// 一個麻辣雞腿漢堡
Scanner in =
new
Scanner(System.in);
//System.out.print("請輸入付款金額");
System.out.print(
"-----現有如下產品-----\n"
);
System.out.print(
"--麻辣風味漢堡\t單價:15.0.\n--奧爾良風味雞翅\t單價:3.0\n--普通風味薯條\t單價:8.0\n--可樂飲料\t單價:6.0\n--套餐一(麻辣風味漢堡+可樂飲料)\t單價:21\n"
);
System.out.print(
"\n-----------------------"
);
System.out.print(
"\n請點餐:\n"
);
System.out.print(
"請輸入麻辣風味漢堡數量---:"
);
int
a1=in.nextInt();
System.out.print(
"請輸入奧爾良風味雞翅數量-:"
);
int
a2=in.nextInt();
System.out.print(
"普通入風味薯條數量------:"
);
int
a3=in.nextInt();
System.out.print(
"請輸入可樂飲料數量------:"
);
int
a4=in.nextInt();
System.out.print(
"請輸入套餐份數---------:"
);
int
a5=in.nextInt();
System.out.print(
"\n------賬單如下-----\n"
);
float
hamhurgMoney = customer.orderHamburg(a1);
// 四個奧爾良烤雞翅
float
chickenWingsMoney = customer.orderChickenWings(a2);
// 一包薯條
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:"
+ (sum));
System.out.print(
"請輸入付款金額:"
);
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: "
+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();
}
}
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運行結果展示:
文件存儲: