KFC点餐系统

简单实现肯德基点餐系统，提供单点与套餐选项，可选择优惠券
核心代码块：
（1）显示的实现：

package 肯德基;


import java.util.ArrayList;
import java.util.Scanner;

public class Show {
    private ArrayList<KFC> aa = new ArrayList<>();
    private int yhq = 0;
    public Show(){

        zhuJieMain();

    }
    public void zhuJieMain(){
        System.out.println("欢迎来到KFC点餐系统");
        System.out.println("1.点餐");
        System.out.println("2.领取优惠券");
        System.out.println("3.结账");
        show();
    }
    public void jieZhang(){
        Scanner sc = new Scanner(System.in);
        Server c = new Server();
        c.setKfc(aa);
        c.setYhq(yhq);
        c.print();
        int x1 = sc.nextInt();
        c.setMoney(x1);
        c.printXiaopiao();
    }
    public void show(){
        Scanner sc = new Scanner(System.in);
        int x = sc.nextInt();
        if(x==1){
            diancan();
        }
        else if(x==2){
            youhuiquan();
        }else if(x==3){
            jieZhang();
        }
        else{
            System.out.println("输入错误");
        }
    }
    public void diancan(){
        System.out.println("本店有以下产品可供选则:");
        System.out.println("1.香辣鸡腿包:10元/个");
        System.out.println("2.套餐1:腿堡+可乐+辣翅:20元/份");
        System.out.println("3.套餐2:腿堡+辣翅+蛋挞:30元/份");
        Scanner sc = new Scanner(System.in);
        int x = sc.nextInt();
        xuanze(x);
    }

    private void xuanze(int x) {
        KFC a = null;
        Scanner sc = new Scanner(System.in);
        while (true) {

            if (x == 1) {
                a = Factory.creat("香辣鸡腿包");
            } else if (x == 2) {
                a = Factory.creat("套餐1");
            } else if (x == 3) {
                a = Factory.creat("套餐2");
            } else {
                System.out.println("没有该套餐");
            }
            aa.add(a);
            System.out.println("继续Y,或返回上一页X/N");
            String s = sc.next();
            if (s.equals("N")){
                zhuJieMain();
                break;
            }else if(s.equals("Y")){
                diancan();
                break;
            }else if (s.equals("X")){
                zhuJieMain();
                break;
            }
        }
    }
    public void youhuiquan(){
        System.out.println("1.满50减20,2.满100减30");
        Scanner sc = new Scanner(System.in);
        int x = sc.nextInt();
        if(x==1){
            yhq=50;
        }else if(x==2){
            yhq=100;
        }else{
            System.out.println("没有该操作");
        }
        System.out.println("你现有优惠券"+yhq+"元");
        System.out.println("返回Y");
        String s = sc.next();
        if (s.equals("Y")){
            zhuJieMain();
        }else{
            System.out.println("你还不想结账?");
        }
    }
}

（2）单点
可再根据喜好向其中增添其他类型的食物

public class Food extends KFC{

    private int price = 10;
    private String name = "香辣鸡腿包";

    public int getPrice() {
        return price;
    }

    @Override
    public String getName() {
        return name;
    }
}

（3）套餐

public class SetMeal1 extends KFC {
    private String name = "套餐1:腿堡+可乐+辣翅20元/份";
    private int price=20;

    @Override
    public String getName() {
        return name;
    }

    @Override
    public int getPrice() {
        return price;
    }
}

只列举了一种套餐，可继续添加其余套餐
（3）方法类的实现

public class KFC {
    private String name;
    private int price;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getPrice() {
        return price;
    }

    public void setPrice(int price) {
        this.price = price;
    }
}

在此只展示了部分核心代码与有代表性的代码块，此代码可扩充性强，可以随意按照自己喜好在其中添加不同的食物与套餐。