java餐馆点餐(入门级示例)

【核心代码】

//定义集合，表示菜单
private static List<Dish> dishlist = new ArrayList<Dish>();

//吃饭的用户已点的菜品集合
private static List<Dish> personDish = new ArrayList<Dish>();

public static void main(String[] args) {

//初始化菜品
initDish();

Scanner scanner = new Scanner(System.in);

while(true){

//给用户展示主菜单

showmenu();

//获取内容

int num = scanner.nextInt();

switch (num) {
case 1:
while(true){
//菜单展示给用户
showDishMenu();
//获取用户输入的内容
int id = scanner.nextInt();
//判断
if (id == 0) {
break;
}
//从饭店的集合中获取到菜品的对象
Dish dish = dishlist.get(id-1);
System.out.println("亲，您点了：" dish.getName());
//用户点一个，存储一个
personDish.add(dish);
}
case 2:
//展示用户点的菜品
showPersonDish();
break;
case 3:
//买单
buy();
return;

default:
System.out.println("你的输入有误，请重新输入");
break;
}
}
}

//菜单展示给用户
public static void showDishMenu(){
System.out.println("------请您点菜-----");
for (Dish d : dishlist) {
System.out.println(d.toString());
}
System.out.println("----输入序号点菜，按0返回上一级");
}

//展示用户点的菜品
public static void showPersonDish(){
System.out.println("  ------您已点的菜-----");
for (Dish dish : personDish) {
System.out.println(dish.toString());
}
}

//买单
public static void buy(){
System.out.println("    正在结算中        ");
double total = 0;
for (Dish dish : personDish) {
total = dish.getPrice();
}
System.out.println("亲，您本次消费了：" total " 元");
}
/**
* 主菜单
*/
public static void showmenu(){
System.out.println("  --------  主菜单  -------- ");
System.out.println("菜单\t\t\t 1");
System.out.println("已点菜品\t\t\t 2");
System.out.println("买单\t\t\t 3");
System.out.println("*****请根据编号选择你的服务*****");
}

/**
* 初始化菜单
*/
public  static void initDish(){
Dish d1  = new Dish(1, "炖王八", 45);
dishlist.add(d1);

Dish d2  = new Dish(2, "大腰子", 30);
dishlist.add(d2);

Dish d3  = new Dish(3, "牛肉面", 18);
dishlist.add(d3);

Dish d4  = new Dish(4, "胡辣汤", 8);
dishlist.add(d4);

Dish d5  = new Dish(5, "炒拉条", 12);
dishlist.add(d5);

Dish d6  = new Dish(6, "香辣肉丝", 25);
dishlist.add(d6);

dishlist.add(new Dish(7,"油焖大虾",80));

}




}