本文实例为大家分享了java实现外卖订餐系统的具体代码，供大家参考，具体内容如下

一、使用技术

javaSE

二、实现功能

外卖订餐系统

具体要求如下：

使用选择结构，循环结构，数组的知识实现一个外卖订餐系统

三、运行效果图

1.订餐功能

2.查看餐袋

3.签收订单

4.删除订单

5.点赞

6.退出

分析图片信息，可以看出我们需要创建一个菜单类，查看餐带类和点赞菜单类

1.首先我们创建一个菜单类，用来定义菜单的属性，使用到封装，构造方法，和toString方法。

public class Food {//菜单 @Override public String toString() { return "Food{" + "num=" + num + ", name='" + name + '\'' + ", price=" + price + '}'; } private int num; private String name; private double price; public Food() { } public Food(int num, String name, double price) { this.num = num; this.name = name; this.price = price; } public int getNum() { return num; } public void setNum(int num) { this.num = num; } public String getName() { return name; } public void setName(String name) { this.name = name; } public double getPrice() { return price; } public void setPrice(double price) { this.price = price; }}

2.其次，我们在创建一个查看餐袋类

public class SeeFood {//查看餐带 private int num;//序号 private String name;//订餐人 //private String information;//信息 private String food;//菜品 private int num1;//份数 private int date;//送餐日期 private String address;//送餐地址 private double money;//金额 private String state;//订单状态 @Override public String toString() { return "SeeFood{" + "num=" + num + ", name='" + name + '\'' + ", food='" + food + '\'' + ", num1=" + num1 + ", date='" + date + '\'' + ", address='" + address + '\'' + ", money=" + money + ", state='" + state + '\'' + '}'; } public int getNum() { return num; } public void setNum(int num) { this.num = num; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getFood() { return food; } public void setFood(String food) { this.food = food; } public int getNum1() { return num1; } public void setNum1(int num1) { this.num1 = num1; } public int getDate() { return date; } public void setDate(int date) { this.date = date; } public String getAddress() { return address; } public void setAddress(String address) { this.address = address; } public double getMoney() { return money; } public void setMoney(double money) { this.money = money; } public String getState() { return state; } public void setState(String state) { this.state = state; } public SeeFood() { } public SeeFood(int num, String name, String food, int num1, int date, String address, double money, String state) { this.num = num; this.name = name; this.food = food; this.num1 = num1; this.date = date; this.address = address; this.money = money; this.state = state; }}

3.再创建一个点赞菜单类

public class FabulousFood {//点赞菜单 private int num;//序号 private String name; private double price; private int numfabulous;//点赞序号 private String fabulous; @Override public String toString() { return "FabulousFood{" + "num=" + num + ", name='" + name + '\'' + ", price=" + price +" "+ numfabulous + fabulous + '\'' + '}'; } public FabulousFood() { } public FabulousFood(int num, String name, double price, int numfabulous, String fabulous) { this.num = num; this.name = name; this.price = price; this.numfabulous = numfabulous; this.fabulous = fabulous; } public int getNum() { return num; } public void setNum(int num) { this.num = num; } public String getName() { return name; } public void setName(String name) { this.name = name; } public double getPrice() { return price; } public void setPrice(double price) { this.price = price; } public int getNumfabulous() { return numfabulous; } public void setNumfabulous(int numfabulous) { this.numfabulous = numfabulous; } public String getFabulous() { return fabulous; } public void setFabulous(String fabulous) { this.fabulous = fabulous; }}

4.创建点餐系统实现其功能，每个功能都使用方法来实现

import java.util.ArrayList;import java.util.Iterator;import java.util.Scanner;public class OrderFood {//点餐 static Scanner sc=new Scanner(System.in); static int date;//送餐时间 static int number=0;//餐带序号 public static void main(String[] args) { ArrayList<Food> list = new ArrayList<>(); list.add(new Food(1, "红烧茄子", 24)); list.add(new Food(2, "红烧排骨", 36)); list.add(new Food(3, "鱼香肉丝", 32)); ArrayList<FabulousFood> list2 = new ArrayList<>(); list2.add(new FabulousFood(1, "红烧茄子", 24,0,"赞")); list2.add(new FabulousFood(2, "红烧排骨", 36,0,"赞")); list2.add(new FabulousFood(3, "鱼香肉丝", 32,0,"赞")); ArrayList<SeeFood> list1 = new ArrayList<>(); System.out.println(" 欢迎使用“外卖点餐系统”"); System.out.println("*******************************"); orderFood(list,list1,list2); } public static void orderFood(ArrayList<Food> list1,ArrayList<SeeFood> list2,ArrayList<FabulousFood> list3){//点餐系统界面 // System.out.println(" 欢迎使用“外卖点餐系统”"); //System.out.println("*******************************"); System.out.println("1、我要点餐"); System.out.println("2、查看餐带"); System.out.println("3、签收订单"); System.out.println("4、删除订单"); System.out.println("5、我要点赞"); System.out.println("6、退出系统"); System.out.println("*******************************"); System.out.println("请选择："); String num=sc.next(); if (num.equals("1")){ orderingFood(list1,list2,list3); }else if (num.equals("2")){ seeFood(list1, list2,list3); }else if (num.equals("3")){ signFor(list1, list2,list3); }else if (num.equals("4")){ deletFood(list1,list2,list3); }else if (num.equals("5")){ fabulousFood(list1,list2,list3); }else if (num.equals("6")){ System.out.println("谢谢使用，欢迎下次光临！"); return; }else { System.out.println("输出错误，请重新输入！"); orderFood(list1,list2,list3); } } public static void fabulousFood(ArrayList<Food> list,ArrayList<SeeFood> list2,ArrayList<FabulousFood> list3){//点赞 System.out.println("******我要点赞******"); System.out.println("序号 菜名 单价"); Iterator<FabulousFood> it = list3.iterator(); while (it.hasNext()){ System.out.println(it.next()); } System.out.println("请选择您要点赞的菜品序号："); int num=sc.nextInt(); for (int i = 0; i <list.size() ; i++) { if (num==list.get(i).getNum()){ list3.get(i).setNumfabulous((list3.get(i).getNumfabulous()+1)); } } System.out.println("点赞成功！"); System.out.println("输入0返回"); int b=sc.nextInt(); if (b==0){ orderFood(list,list2,list3); } } public static void deletFood(ArrayList<Food> list,ArrayList<SeeFood> list2,ArrayList<FabulousFood> list3){//删除订单 System.out.println("请输入要删除的订单序号"); int a=sc.nextInt(); for (int i = 0; i <list2.size() ; i++) { if (a==list2.get(i).getNum()){ list2.remove(list2.get(i)); } } System.out.println("删除订单成功！"); System.out.println("输入0返回"); int b=sc.nextInt(); if (b==0){ orderFood(list,list2,list3); } } public static void signFor(ArrayList<Food> list,ArrayList<SeeFood> list2,ArrayList<FabulousFood> list3){//签收订单 System.out.println("请输入要签收的的订单序号："); int sign=sc.nextInt(); for (int i = 0; i <list.size() ; i++) { if (sign==(list.get(i).getNum())){ list2.get(i).setState("已签收"); } } System.out.println("订单签收成功！"); System.out.println("输入0返回"); int a=sc.nextInt(); if (a==0){ orderFood(list,list2,list3); } } public static void seeFood(ArrayList<Food> list,ArrayList<SeeFood> list2,ArrayList<FabulousFood> list3){//查看餐带 System.out.println("******查看餐带******"); System.out.println(" 序号 订餐人 餐品信息 送餐日期 " + " 送餐地址 总金额 订单状态"); Iterator<SeeFood> it = list2.iterator(); while (it.hasNext()){ System.out.println(it.next()); } System.out.println("输入0返回"); int a=sc.nextInt(); if (a==0){ orderFood(list,list2,list3); } } public static void orderingFood(ArrayList<Food> list1,ArrayList<SeeFood> list2,ArrayList<FabulousFood> list3){//订餐 System.out.println("我要订餐"); System.out.println("请输入订餐人的姓名："); String name=sc.next(); System.out.println("序号 菜名 单价"); Iterator<Food> it = list1.iterator(); while (it.hasNext()){ System.out.println(it.next()); } System.out.println("请输入您要点的菜品编号"); int num=sc.nextInt(); System.out.println("请选择您需要的份数"); int num1=sc.nextInt(); foodDelilvery(); int num3=date;//送餐时间 System.out.println("请输入送餐地址"); String address=sc.next(); System.out.println("订餐成功！"); number++;//餐带序号 System.out.print("您订的是："); String food=list1.get(num-1).getName();//菜品 System.out.println(food+" "+num1+"份"); System.out.println("送餐时间："+date+"点"); double money=list1.get(num-1).getPrice()*num1;//餐费 System.out.println("餐费："+money +"元，送餐费6.0元，总计："+(money+6)+"元"); //姓名，份数，时间，地址，菜品，餐费 list2.add(new SeeFood(number,name,food,num1,num3,address,(money+6),"已预定")); System.out.println("输入0返回："); String input=sc.next(); if (input.equals("0")){ orderFood(list1,list2,list3); }else { System.out.println("欢迎下次光临"); } } static public void foodDelilvery(){//送餐时间 System.out.println("请输入送餐的时间（送餐时间是10点至20点间整点送餐）："); int num2=sc.nextInt(); date=num2; if (num2<10||num2>20){ System.out.println("不在送餐时间！"); foodDelilvery(); } }}

1.点餐功能

2.查看餐带

3.签收订单

4.删除订单

5.我要点赞

6.退出系统

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。