吃货联盟订餐系统（对象+集合）

// 菜单信息类

package 对象和集合.吃货联盟订餐系统;

public class Food {
    private String names;//姓名
    private String disMigs;//菜品
    private int times;//时间
    private String addresses;//地址
    private Double sumPrices;//总金额
    //订单状态 0 已预定 1已完成
    private int states;
    public String getNames() {
        return names;
    }
    public void setNames(String names) {
        this.names = names;
    }
    public String getDisMigs() {
        return disMigs;
    }
    public void setDisMigs(String disMigs) {
        this.disMigs = disMigs;
    }
    public int getTimes() {
        return times;
    }
    public void setTimes(int times) {
        this.times = times;
    }
    public String getAddresses() {
        return addresses;
    }
    public void setAddresses(String addresses) {
        this.addresses = addresses;
    }
    public Double getSumPrices() {
        return sumPrices;
    }
    public void setSumPrices(Double sumPrices) {
        this.sumPrices = sumPrices;
    }
    public int getStates() {
        return states;
    }
    @Override
    public String toString() {
        String s=states==0?"未完成":"已完成";
        return names + '\t' + disMigs + '\t' + times + "点\t"+ addresses + '\t' + sumPrices +"元\t"+ s;
    }
    public void setStates(int states) {
        this.states = states;
    }
    public Food(String names, String disMigs, int times, String addresses, Double sumPrices, int states) {
        this.names = names;
        this.disMigs = disMigs;
        this.times = times;
        this.addresses = addresses;
        this.sumPrices = sumPrices;
        this.states = states;
    }
    public Food() {
    }
}

//菜品类

package 对象和集合.吃货联盟订餐系统;

public class Order {
    private String dishNames;//菜品
    private double prices;//价格
    private int  praiseNums;//点赞数

    @Override
    public String toString() {
        return dishNames + '\t' + prices + "元\t"+ praiseNums+"赞";
    }

    public Order(String dishNames, double prices, int praiseNums) {
        this.dishNames = dishNames;
        this.prices = prices;
        this.praiseNums = praiseNums;
    }

    public String getDishNames() {
        return dishNames;
    }

    public void setDishNames(String dishNames) {
        this.dishNames = dishNames;
    }

    public double getPrices() {
        return prices;
    }

    public void setPrices(double prices) {
        this.prices = prices;
    }

    public int getPraiseNums() {
        return praiseNums;
    }

    public void setPraiseNums(int praiseNums) {
        this.praiseNums = praiseNums;
    }
    public Order() {
    }
}

//功能类 or 业务需求

package 对象和集合.吃货联盟订餐系统;

import java.util.List;
import java.util.Scanner;


public class Business {

    public  static Scanner sc = new Scanner(System.in);
    public static void giveTheThumbsup(List<Order> orders, Scanner sc) {
        printcanpin(orders);
        System.out.println("请输入你觉得好吃的菜：");
        int xuhao2= sc.nextInt();
        while (xuhao2<1||xuhao2>orders.size()-1){
            System.out.println("输入错误请重新输入！");
            xuhao2= sc.nextInt();
        }
        orders.get(xuhao2-1).setPraiseNums(orders.get(xuhao2-1).getPraiseNums()+1);
        System.out.println("点赞成功！！");
    }

    public static void delete(List<Food> foods, Scanner sc) {
        printArrays(foods);
        boolean falg2=false;
        System.out.println("请输入你要删除的订单！");
        int xuhao1= sc.nextInt();
        while (xuhao1<1||xuhao1>foods.size()){
            System.out.println("输入有悟请重新输入！");
            xuhao1= sc.nextInt();
        }
        //定义一个值用来记住索引
        for (int i = 0; i < foods.size(); i++) {
            if (foods.get(i).getStates()==1&&xuhao1==i+1){
                foods.remove(i);
                System.out.println("删除成功！");
                break;
            }else if (foods.get(i).getStates()==0&&xuhao1==i+1){
                System.out.println("该订单未签收不能删除！");
                break;
            }
        }
    }


    public static void signFor(List<Food> foods, Scanner sc) {
        printArrays(foods);
        boolean falg1=false;
        System.out.println("请输入你要签收的订单！");
        int xuhao= sc.nextInt();
        //定义一个值 用来签收订单
        for (int i = 0; i < foods.size(); i++) {
            if (foods.get(i).getStates()==1&&xuhao==i+1){
                falg1=true;
                System.out.println("该订单已签收！");
                break;
            }else if (foods.get(i).getStates()==0&&xuhao==i+1){
                falg1=true;
                foods.get(i).setStates(1);
                System.out.println("签收完成！");
                break;
            }
        }
        if (!falg1){
            System.out.println("输入有误！");
        }
    }

    public static void orderaMeal(List<Food> foods, List<Order> orders, Scanner sc) {
        boolean falg=false;
        System.out.println("------------------------我要订餐---------------------------");
        printcanpin(orders);
        for (int i = 0; i <foods.size() ; i++) {
                falg=true;
                System.out.println("请输入你要点的菜品序号：");
                int xuhao = sc.nextInt();
                while (xuhao>3||xuhao<1){
                    System.out.println("对不起你输入错误！请重新输入！");
                    xuhao = sc.nextInt();
                }
                System.out.println("请输入你要点几份");
                int number = sc.nextInt();
                while (number<=0){
                    System.out.println("输入有误！！！");
                    number = sc.nextInt();
                }
                //汇总
                String disMag=orders.get(xuhao).getDishNames()+" "+number+"份";
                System.out.println("请输入你的姓名");
                String name= sc.next();
                System.out.println("请输入你的订餐时间：");
                int time= sc.nextInt();
                while (time>20||time<10){
                    System.out.println("对不起不在配送时间请重新输入！");
                    time= sc.nextInt();
                }
                System.out.println("请输入你的配送地址！");
                String address= sc.next();
                Double Price=orders.get(xuhao-1).getPrices()*number;
                //配送废
                Double psf=Price>=50?0.0:6.0;
                double sumPrice=Price+psf;
                Food f3=new Food(name,disMag,time,address,sumPrice,0);
                foods.add(f3);
                System.out.println("创建成功！");
                break;

        }
        if (!falg){
            System.out.println("对不起餐袋已满！");
        }
    }

    public static void printcanpin(List<Order> orders) {
        System.out.println("序号"+"\t餐品名"+"\t单价"+" \t点赞数");
        for (int i = 0; i < orders.size(); i++) {
            String rs = orders.get(i).getPraiseNums()+"赞";
            System.out.println((i+1)+"\t"+ orders.get(i).getDishNames()+"\t"+ orders.get(i).getPrices()+"\t"+rs );
        }
    }
    public static void printArrays(List<Food> foods) {
        System.out.println("-----------------------------查看餐袋---------------------------------------");
        System.out.println("序号"+"\t订餐人"+"\t餐品名  份数"+"\t时间"+"\t商品送餐地址"+"\t总金额"+"\t订单状态");
        for (int i = 0; i < foods.size(); i++) {
            String rs =foods.get(i).getStates()==0?"未签收":"已签收";
                System.out.println((i + 1) + "\t" + foods.get(i).getNames()+"\t"+ foods.get(i).getDisMigs()+"\t" +
                        foods.get(i).getTimes()+"\t"+ foods.get(i).getAddresses()+"\t"+ foods.get(i).getSumPrices()+"\t"+ rs);

        }
    }
}

//测试类

package 对象和集合.吃货联盟订餐系统;

import java.util.*;

public class Test {
    public static final   List<Food> foods = new ArrayList<>();
    public static final List<Order> orders = new ArrayList<>();
    public static void main(String[] args) {
        //定义数组来储存对象
        //初始化
        Food f1 = new Food("王小明", "红烧带鱼 2份", 12, "天河路666号", 76.0, 1);
        Food f2 = new Food("陈大鸿", "凉拌鸡丝 2份", 10, "天河路786号", 22.0, 0);

        foods.add(f1);
        foods.add(f2);
        //初始化
        Order o1 = new Order("红烧带鱼", 38.0, 0);
        Order o2 = new Order("小炒肉", 32.0, 0);
        Order o3 = new Order("凉半鸡丝", 11.0, 0);
        //定义数组储存

        orders.add(o1);
        orders.add(o2);
        orders.add(o3);
        int num = -1;
        Scanner sc = new Scanner(System.in);
        do {
            System.out.println("----------------------------饿了么-----------------------------");
            System.out.println("1、我要订餐");
            System.out.println("2、查看餐袋");
            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("请选择(1-6)");
            int comy = sc.nextInt();
            if (comy <= 6 && comy >= 1) {
                switch (comy) {
                    case 1:
                        //展示菜品
                        Business.orderaMeal(foods, orders, sc);
                        break;
                    case 2:
                        //查看餐袋
                        Business.printArrays(foods);
                        break;
                    case 3:
                        //签收订单
                        Business.signFor(foods, sc);
                        break;
                    case 4:
                        //删除订单
                        Business.delete(foods, sc);
                        break;
                    case 5:
                        //我要点赞
                        Business.giveTheThumbsup(orders, sc);
                        break;
                    case 6:
                        System.out.println("感谢你的光临！！");
                        return;
                }
            } else {
                System.out.println("输入错误！");
            }
            System.out.print("输入0返回:");
            num = sc.nextInt();
            while (num != 0) {
                System.out.println("输入0返回:!!!!!!!!!");
                num = sc.nextInt();
            }
        } while (num == 0);
    }
}