Java基础巩固小项目点菜系统的实现

import java.util.ArrayList;

import java.util.List;

import java.util.Scanner;

public class DishApp {

     static List<Dish> dishList = new ArrayList<>();

     static List<Dish> hadorder = new ArrayList<Dish>();

//创建所有菜集合和已经点的菜集合

//这里注意集合要为全局变量，静态的

     public static void main(String[] args) {

         initDisk();

         Scanner scanner = new Scanner(System.in);

         while ( true ) {

             showMenu();

             int num = scanner.nextInt();

             switch (num) {

                 case 1 :

                     while ( true ) {

                         order();

                         int id = scanner.nextInt();

                         if (id == 0 ) {

                             break ;

                         }

                         Dish dish = dishList.get(id - 1 );

                         System.out.println( "点了" + dish.name);

                         hadorder.add(dish);

                     }

                 case 2 :

                     showHadOrder();

                     break ;

                 case 3 :

                     buy();

                     break ;

                 default :

                     break ;

             }

         }

     }

//初始化菜表

     public static void initDisk() { //菜品可根据需要写，我这里就简写一下哈

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