Information Reference KFC official website analog KFC cash register system, the rational use C ++ or Python or Java design patterns (two or more kinds) implementation of the system at least the following functions:
1. Normal settlement food products and give change.
2. The basic package settlement and give change.
3. Use the coupons to purchase food products settlement and give change.
4 can store events involved in a certain period of time (refer to the official network designed or information).
5. Analog small ticket printing function (written to a file).
Small ticket information is stored
Print {class
String S = ""; // save the order information
}
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food factories
{FoodFactory interface
public Hamburger createHamburger (Print S, kind int, int NUM); // producing hamburgers
public Drink createDrink (print s, int kind, int num); // beverage production
public Chicken createChicken (print s, int kind, int num); // producing chicken
public sweetmeats createSweetmeats (print s, int kind, int num); // dessert production
public snack createSnack (print s, int kind, int num); // snack production
public frenchFries createFrenchFries (print s , int kind, int num); // production fries
public SetMeal createSetMeal (print s, int kind, int num); // Package production
}
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concrete plant food
interface Hamburger{
public double price(int num);
}
interface Drink{
public double price(int num);
}
interface Chicken{
public double price(int num);
}
interface Sweetmeats{
public double price(int num);
}
interface Snack{
public double price(int num);
}
interface FrenchFries{
public double price(int num);
}
interface SetMeal{
public double price(int num);
}
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specific food
// Hamburg
// Fort Orleans roast
class Hamburger_1 the implements Hamburger {
public. Price Double (int NUM)
{
System.out.println ( "Fort Orleans roast" + "" + "number:" + num + "" + " Total:" + (NUM *. 8));
return NUM *. 8; // return price
}
}
// spicy chicken burger
class Hamburger_2 the implements Hamburger {
public. price Double (int NUM)
{
System.out.println ( "spicy chicken burger" + "" + "number:" + num + "" + " total:" + (NUM *. 9));
return NUM *. 9;
}
}
// fresh crisp chicken burger
class Hamburger_3 the implements Hamburger {
public Double. price (int NUM)
{
System.out.println ( "fresh crisp chicken burger" + "" + "number:" + num + "" + " total:"+ (NUM * 10));
return NUM * 10;
}
}
// drinks
// orange juice
Drink_1 the implements. Drink. {class
public. price Double (int NUM)
{
System.out.println ( "orange" + "" + "Number:" + num + "" + " Total:" + (NUM *. 7));
return NUM * 7; // return price
}
}
// Pepsi
class Drink_2 the implements. Drink. {
public. price Double (int NUM)
{
System.out.println ( "Pepsi" + "" + "number:" NUM + + "" + "total:" + (NUM *. 8));
return NUM *. 8;
}
}
// Budweiser
class Drink_3 the implements. Drink. {
public. price Double (int NUM)
{
System.out.println ( "Budweiser" + "" + "the number of : "+ num +" "+ " total: "+ (NUM * 9));
return NUM * 9;
}
}
// Chicken
// Old Beijing Chicken Roll
class Chicken_1 implements Chicken {
Double. price public (int NUM)
{
System.out.println ( "Old Beijing Chicken Roll" + "" + "number:" + num + "" + " Total:" + (NUM * 9));
return NUM * 9; // return price
}
}
// spicy chicken wings
class Chicken_2 the implements Chicken {
public. price Double (int NUM)
{
System.out.println ( "spicy chicken wings" + "" + "number:" + num + "" + " total : "+ (* 13 is NUM));
return 13 is NUM *;
}
}
// chicken
class Chicken_3 the implements chicken {
public. price Double (int NUM)
{
System.out.println (" chicken "+" "+" the number of : "+ num +" "+ " total: "+ (NUM * 10));
return NUM * 10;
}
}
// desserts
// flavor sundae
class Sweetmeats_1 the implements sweetmeats {
public. Price Double (int NUM)
{
System.out.println ( "Original Sundae" + "" + "number:" + num + "" + " Total:" + (NUM * 9));
return NUM * 9; // return price
}
}
// Portugal formula tart
class Sweetmeats_2 the implements sweetmeats {
public. price Double (int NUM)
{
System.out.println ( "Portuguese egg tart" + "" + "number:" + num + "" + " total:" + (num * 12) ) ;
return 12 is NUM *;
}
}
// chocolate waffle
class Sweetmeats_3 the implements sweetmeats {
public. price Double (int NUM)
{
System.out.println ( "chocolate waffle" + "" + "number:" + num + " "+" total: "+ (NUM * 10));
return NUM * 10;
}
}
// snacks
// salad
class Snack_1 the implements the Snack {
public. Price Double (int NUM)
{
System.out.println ( "green salad" + "" + "number:" + num + "" + " Total:" + (NUM * 10));
return NUM * 10; // return price
}
}
// mellow potatoes mud
class Snack_2 the implements the Snack {
public. price Double (int NUM)
{
System.out.println (+ "" + "number" mellow mashed potatoes ":" + num + "" + " total:" + (num * 11) );
NUM *. 11 return;
}
}
// sweet corn rod
class Snack_3 the implements the Snack {
public. price Double (int NUM)
{
System.out.println ( "sweet corn stick" + "" + "number:" + num + "" + " total: "+ (NUM * 6));
return NUM * 6;
}
}
// fries
// King corrugated chips
class FrenchFries_1 the implements frenchfries {
public. Price Double (int NUM)
{
System.out.println ( "ripple King fries" + "" + "number:" + num + "" + " Total:" + (NUM * 12));
return NUM * 12; // return price
}
}
// Package
// Package 1
class SetMeal_1 the implements SetMeal {
public. price Double (int NUM) {
System.out.println ( "spicy chicken wings + Pepsi" + "" + "number:" + num + "" + " total:" + ( *. 17 NUM));
return NUM *. 17;
}
}
// Package 2
class SetMeal_2 the implements SetMeal {
public. price Double (int NUM) {
System.out.println ( "crisp chicken burger fresh orange juice +" + "" + "the number of : "+ num +" "+ " total: "+ (NUM * 15));
return NUM * 15;
}
}
// package. 3
class SetMeal_3 the implements SetMeal {
public. Price Double (int NUM) {
System.out.println ( "spicy chicken burger + + corrugated Budweiser King fries" + "" + "Number:" + num + "" + "total:" + (num * 25) );
Surely return 25;
}
}
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Production particular food
Specific food production //
class createFood the implements FoodFactory {
Print Print new new P = ();
public Hamburger createHamburger (Print S, kind int, int NUM) {
IF (== kind. 1) {
SS = S.S. + "\ n-" + "Orléans Hamburg Price:" + "8" + "number:" NUM + + "total:" + (num * 8) ; // save the information to the s
return new new Hamburger_1 ();}
the else IF (kind == 2 ) {
SS = S.S. + "\ n-" + "spicy chicken burger Price:" + "9" + "number:" NUM + + "total:" + (NUM * 9);
return new new Hamburger_2 ();}
the else IF (== kind. 3) {
SS = S.S. + "\ n-'+' fresh crisp chicken burger Price:" + "10" + "number:" NUM + + "total:" + (10 * NUM);
return new new Hamburger_3 ();}
the else return null;
}
public. Drink. createDrink (Print S, int kind,NUM int) {
IF (== kind. 1) {
SS = S.S. + "\ n-'+' orange Price:" + "7" + "Number:" NUM + + "Total:" + (num * 7) ; / / s to save the information in the
new new Drink_1 return ();}
the else IF (kind == 2) {
SS = S.S. + "\ n-" + "Pepsi Price:" + "8" + "Number:" NUM + + "Total:" + (num * . 8);
return new new Drink_2 ();}
the else IF (== kind. 3) {
SS = S.S. + "\ n-'+' Budweiser Price:" + "9" + "number:" NUM + + "total: "+ (NUM *. 9);
return new new Drink_3 ();}
the else return null;
}
public Chicken createChicken (Print S, kind int, int NUM) {
IF (== kind. 1) {
SS = S.S. +" \ n- "+" old Beijing chicken roll Price: "+" 9 "+" number "+ + num" total: "+ (num * 9) ; // save the information to s in
return new new Chicken_1 ();}
the else IF (kind 2 ==) {
SS = S.S. + "\ n-" + "spicy chicken wings Price:" + "13" + "the number of" + + NUM "total:" + (num * 13) ;
new new Chicken_2 return ();}
the else IF (== kind. 3) {
+ "chicken Price:" ss = s.s + "\ n" + "10" + " the number of" + num + "Total:" + (num * 10);
return new new Chicken_3 ();}
return null the else;
}
public sweetmeats createSweetmeats (Print S, kind int, int NUM) {
IF (== kind. 1) {
SS = S.S. + "\ n-" + "flavor Sundae Price:" + "9" + " number of "+ num +" total: "+ (num * 9) ; // save the information to the s
return new new Sweetmeats_1 ();}
the else IF (kind == 2) {
SS = S.S. +" \ n-"+" Portuguese egg tart Price: "+" 12 "+" the number of "+ + NUM" total: "+ (12 * NUM);
return new new Sweetmeats_2 ();}
the else IF (== kind. 3) {
SS = S.S. +" \ n "+" chocolate waffle Price: "+" 10 "+" the number of "+ NUM +" total: "+ (NUM * 10);
return new new Sweetmeats_3 ();}
the else return null;
}
public the Snack createSnack (Print S , kind int, int NUM) {
IF (== kind. 1) {
SS = S.S. + "\ n-" + "Vegetable salad Price: "+" 10 "+" the number of "+ + NUM" Total: "+ (num * 10) ; // save the information to the s
return new new Snack_1 ();}
the else IF (kind == 2) {
ss = s.s + "\ n" + " mellow mashed potatoes Price:" + "11" + "the number of" + NUM + "Total:" + (NUM * 11);
return new new Snack_2 ();}
the else IF (kind = =. 3) {
SS = S.S. + "\ n-" + "sweet corn stick Price:" + "6" + "the number of" + NUM + "total:" + (NUM * 6);
return new new Snack_3 ();}
the else null return;
}
public frenchfries createFrenchFries (Print S, kind int, int NUM) {
IF (== kind. 1) {
SS = S.S. + "\ n-" + "corrugation King fries Price:" + "12" + " number of "+ num +" total: "+ (num * 12) ; // save the information to the in s
() return new new FrenchFries_1;}
the else return null;
}
public SetMeal createSetMeal (Print s, int kind, int NUM) {
IF (kind == 1) {
SS = S.S. + "\ n-" + "Price Package 1:" + "17" + "Number of "+ num +" Total: "+ (num * 17) ; // save the information to the s
return new new SetMeal_1 ();}
the else IF (kind == 2) {
ss = s.s + "\ n" + " Price Package 2:" + "15" + "the number of" + + NUM "Total:" + (15 * NUM);
return new new SetMeal_2 ();}
the else IF (kind == 3) {
SS = S.S. + "\ n-" + "Package 3 Price:" + "25" + "the number of" + NUM + "total:" + (NUM * 25);
return new new SetMeal_3 ();}
the else return null ;
}
}
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Usually food, returns the price
class Price{
public FoodFactory create;
//构造方法将抽象工厂传入
public Price(FoodFactory create) {
this.create=create;
}
public double orderHamburger(print s,int kind,int num) {
Hamburger hamburger=create.createHamburger(s,kind, num);
return hamburger.price(num);
}
public double orderDrink(print s,int kind,int num) {
Drink drink=create.createDrink(s,kind, num);
return drink.price(num);
}
public double orderChicken(print s,int kind,int num) {
Chicken chicken=create.createChicken(s,kind, num);
return chicken.price(num);
}
public double orderSweetmeats(print s,int kind,int num) {
Sweetmeats sweetmeats=create.createSweetmeats(s,kind, num);
return sweetmeats.price(num);
}
public double orderSnack(print s,int kind,int num) {
Snack snack=create.createSnack(s,kind, num);
return snack.price(num);
}
public double orderFrenchFries(print s,int kind,int num) {
FrenchFries frenchFries=create.createFrenchFries(s,kind, num);
return frenchFries.price(num);
}
public double orderSetMeal(print s,int kind,int num) {
SetMeal setMeal=create.createSetMeal(s,kind, num);
return setMeal.price(num);
}
}
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