Java 菜单 顾客 订单
现在有一份菜单给客人察看，并要计算他们的消费。
要求：客人菜时要打印出菜单，而且只需输入菜号即点菜，并要打印出客人所点的菜，最后计算客人应付的菜钱。
编号 菜名 价钱
01 扬州炒饭 5.0
02 辣子鸡丁 9.0
03 羊肉串 5.0
04 鸡汤 15.0
各位高手帮帮忙吧~~~~~能做得了全部最好，谢谢！！！问题补充：
程序是要输入菜号就能知道菜名、菜价，我就是不会这点。。。
如果可以，希望能用一维数组做出来。我是初学者！！！！！
答得好能加分哦，谢谢！！
麻烦各位了，请多包涵！
菜单类
package ddd;
public class Dish {
private String name;
private String id;
private double unit;
private int number;
private String text;
public Dish(String id,String name,double unit,int number){
this.id=id;
this.name=name;
this.unit=unit;
this.number=number;
}
public Dish(){
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public double getUnit() {
return unit;
}
public void setUnit(double unit) {
this.unit = unit;
}
public int getNumber() {
return number;
}
public void setNumber(int number) {
this.number = number;
}
public String getText() {
return text;
}
public void setText(String text) {
this.text = text;
}
public Dish clone(){
Dish d=new Dish();
d.setId(id);
d.setName(name);
d.setUnit(unit);
d.setNumber(number);
return d;
}
}
订单类
package ddd;
import java.sql.Date;
import java.text.SimpleDateFormat;
import java.util.LinkedList;
import java.util.List;
public class Order {
private String user;
public List<Dish> list;
private double sumMoney;
private String date;
public Order(String user){
this.user=user;
SimpleDateFormat format=new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
Date date=new Date(System.currentTimeMillis());
this.date=format.format(date);
list=new LinkedList<Dish>();
}
public List<Dish> getList() {
return list;
}
public void setList(List<Dish> list) {
this.list = list;
}
public double getSumMoney() {
return sumMoney;
}
public void setSumMoney(double sumMoney) {
this.sumMoney = sumMoney;
}
public String getDate() {
return date;
}
public void setDate(String date) {
this.date = date;
}
public String getUser() {
return user;
}
public void setUser(String user) {
this.user = user;
}
public void printOrder(){
System.out.println("--------------------------------------------------------------");
System.out.println("+用户名:"+user+"+");
System.out.println("+消费日期:"+date+"+");
System.out.println("--------------------------------------------------------------");
System.out.println("编号 \t 名称 \t 价格(元) \t数量 \t 合计(元)");
for(Dish dish:list){
System.out.printf("%-5s \t %-12s \t %-5s \t %-2s \t %-5s\n",dish.getId(),dish.getName(),dish.getUnit(),dish.getNumber(),dish.getUnit()*dish.getNumber());
}
System.out.println("--------------------------------------------------------------");
System.out.println("+消费合计:"+sumMoney+"+");
}
}
测试类
package ddd;
import java.io.IOException;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Scanner;
public class Main {
private Map<String,Dish> map;
private Order order;
public Main(String username){
map=new LinkedHashMap<String,Dish>();
map.put("01",new Dish("01","扬州炒饭",5.0,10));
map.put("02",new Dish("02","辣子鸡丁",9.0,10));
map.put("03",new Dish("03","羊肉串 ",5.0,10));
map.put("04",new Dish("04","鸡汤 ",15.0,10));
map.put("05",new Dish("05","红烧排骨",25.0,10));
map.put("06",new Dish("06","清蒸鲤鱼 ",35.0,10));
map.put("07",new Dish("07","杂酱面 ",8.0,10));
map.put("08",new Dish("08","绿豆粥 ",2.0,10));
order=new Order(username);
}
public void printDishList(){
System.out.println("-------------------菜 谱-------------------");
System.out.println("编号 \t 名称 \t 价格(元) \t数量");
System.out.println("--------------------------------------------");
for(Dish dish:map.values()){
System.out.printf("%-5s \t %-12s \t %-5s \t %-2s\n",dish.getId(),dish.getName(),dish.getUnit(),dish.getNumber());
}
System.out.println("--------------------------------------------");
}
public static void main(String[] str) throws IOException{
Main main=new Main("佚名");
Scanner s=new Scanner(System.in);
main.printDishList();
while(true){
String id="";
System.out.print("请输入菜单编号：");
id=s.nextLine();
if(!main.map.containsKey(id)) {System.out.println("没有该菜名编号！");continue;}
Dish dish=main.map.get(id).clone();
System.out.println(dish.getName());
System.out.print("请输入所要菜名【"+dish.getName()+"】的数量(0表示全部都要;必须小于等于"+dish.getNumber()+")：");
int number=Integer.parseInt(s.nextLine());
if(number<0 || number>dish.getNumber()){System.out.println("数量输入错误！");continue;}
else if(number==0) ;
else dish.setNumber(number);
main.order.setSumMoney(main.order.getSumMoney()+dish.getNumber()*dish.getUnit());
main.order.list.add(dish);
System.out.println("一种菜品添加成功！继续直接any key；结束输入exit并回车");
String tag=s.nextLine();
if("exit".equalsIgnoreCase(tag)) break;
}
main.order.printOrder();
}
}
