2019-2-21

作业：使用类和对象更改吃货系统

package com.java_eat;
/**
 * 订单类
 * @author Administrator
 *
 */
public class Order {
	private String name;//订单者姓名
	private String dishes;//菜名
	private double amount;//金额
	private int dayTime;//送餐时间
	private String address;//送餐地址
	private String state;//订单状态
	
	public Order() {}

	public Order(String name, String dishes, double amount, int dayTime, String address, String state) {
		super();
		this.name = name;
		this.dishes = dishes;
		this.amount = amount;
		this.dayTime = dayTime;
		this.address = address;
		this.state = state;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public String getDishes() {
		return dishes;
	}

	public void setDishes(String dishes) {
		this.dishes = dishes;
	}

	public double getAmount() {
		return amount;
	}

	public void setAmount(double amount) {
		this.amount = amount;
	}

	public int getDayTime() {
		return dayTime;
	}

	public void setDayTime(int dayTime) throws Exception {
		if(dayTime>8&&dayTime<20) {
			this.dayTime = dayTime;
		}else {
			throw new Exception("送餐时间：8点到20点整点送餐");
		}
	}

	public String getAddress() {
		return address;
	}

	public void setAddress(String address) {
		this.address = address;
	}

	public String getState() {
		return state;
	}

	public void setState(String state) {
		this.state = state;
	}
}

　　

package com.java_eat;
/**
 * 菜品类
 * @author Administrator
 *
 */
public class Menu {
	private String dishes;//菜名
	private double price;//单价
	private int evaluate;//评价
	
	public Menu() {}

	public Menu(String dishes, double price, int evaluate) {
		this.dishes = dishes;
		this.price = price;
		this.evaluate = evaluate;
	}

	public String getDishes() {
		return dishes;
	}

	public void setDishes(String dishes) {
		this.dishes = dishes;
	}

	public double getPrice() {
		return price;
	}

	public void setPrice(double price) {
		this.price = price;
	}

	public int getEvaluate() {
		return evaluate;
	}

	public void setEvaluate(int evaluate) {
		this.evaluate = evaluate;
	}
}

　　

package com.java_eat;

import java.util.ArrayList;
import java.util.Scanner;

public class EatTest {
	public static void main(String[] args) {
		Scanner cxj = new Scanner(System.in);

		Menu m1 = new Menu("红烧鱼",28,2);
		Menu m2 = new Menu("客家豆腐",16,2);
		Menu m3 = new Menu("蛋蒸肉",18,0);
		Menu m4 = new Menu("青菜",12,4);

		ArrayList al = new ArrayList();//记录菜单
		
		al.add(m1);
		al.add(m2);
		al.add(m3);
		al.add(m4);	

		ArrayList alr = new ArrayList();//记录订单
		
		Order o1 = new Order("李一","红烧鱼",28,12,"厦门思明区","已预定");
		Order o2 = new Order("李二","客家豆腐",16,10,"厦门尖尾部","已完成");
		Order or = new Order();//添加新订单

		alr.add(o1);
		alr.add(o2);

		boolean ver = false;
		do {
			System.out.println("**欢迎使用订餐系统**");
			System.out.println("********************");
			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("********************");
			System.out.print("请选择：");
			int a = cxj.nextInt();
			switch(a) {
			case 1:
				if(alr.size()>=4) {
					System.out.println("报歉，订单已满！无法订餐！");
					System.out.println("按0返回：");
					int k1 = cxj.nextInt();
					if(k1==0) {
						ver = true;
						break;
					}
				}
				System.out.print("编号	"+"菜名	"+"单价	"+"评价
");
				for(int i = 0;i<al.size();i++) {
					Menu me = (Menu)al.get(i);
					System.out.println((i+1)+"	"+me.getDishes()+"	"+me.getPrice()+"	"+me.getEvaluate());
				}
				System.out.print("请选择：");
				int t = cxj.nextInt();
				Menu mu = (Menu)al.get(t-1);
				or.setDishes(mu.getDishes());
				System.out.print("请输入订餐者姓名：");
				or.setName(cxj.next());
				System.out.print("请问您需要几份？");
				int c = cxj.nextInt();
				or.setAmount(mu.getPrice()*c);
				
				System.out.print("请选择送餐时间(8点到20点整点送餐)：");
				try {
					or.setDayTime(cxj.nextInt());
				} catch (Exception e) {
					System.err.println("输入的送餐时间有误！");
				}
				
				System.out.print("请输入送餐地址：");
				or.setAddress(cxj.next());
				
				System.out.println("1、确定	2、取消");
				int temp = cxj.nextInt();
				if(temp ==1) {
					or.setState("已预定");
					System.out.println("马上为您配送！");
				}

				alr.add(or);

				System.out.println("按0返回：");
				int k1 = cxj.nextInt();
				if(k1==0) {
					ver = true;
					break;
				}
			case 2:
				System.out.println("******当前餐袋*******");
				System.out.println("编号	姓名	餐品信息	送餐日期	送餐地址		总金额	订单状态");
				for(int i = 0;i<alr.size();i++) {
					Order order = (Order)alr.get(i);
					System.out.println((i+1)+"	"+order.getName()+"	"+order.getDishes()+"	"+order.getDayTime()+"	"+order.getAddress()+"	"+order.getAmount()+"	"+order.getState());
				}
				
				System.out.println("按0返回：");
				int k2 = cxj.nextInt();
				if(k2==0) {
					ver = true;
					break;
				}
			case 3:
				boolean b1 = false;
				System.out.println("******当前订单*******");
				System.out.println("编号	姓名	餐品信息	送餐日期	送餐地址		总金额	订单状态");
				for(int i = 0;i<alr.size();i++) {
					Order order = (Order)alr.get(i);
					System.out.println((i+1)+"	"+order.getName()+"	"+order.getDishes()+"	"+order.getDayTime()+"	"+order.getAddress()+"	"+order.getAmount()+"	"+order.getState());
				}
				if(alr.size()<1) {
					System.out.println("当前无订单，无需签收！");
				}else {
					for(int i = 0;i<alr.size();i++) {
						Order order = (Order)alr.get(i);
						if(order.getState().equals("已预定")){
							b1 = true;
							break;
						}
					}
				}
				if(b1) {
					System.out.print("请输入您要签收的订单编号：");
					int r = cxj.nextInt();
					Order order = (Order)alr.get(r-1);
					order.setState("已完成");
					System.out.println("已签收！");
				}else {
					System.out.println("当前无需要签收的订单！");
				}
				
				System.out.println("按0返回：");
				int k3 = cxj.nextInt();
				if(k3==0) {
					ver = true;
					break;
				}
			case 4:
				boolean b2 = false;
				System.out.println("******当前订单*******");
				System.out.println("编号	姓名	餐品信息	送餐日期	送餐地址		总金额	订单状态");
				for(int i = 0;i<alr.size();i++) {
					Order order = (Order)alr.get(i);
					System.out.println((i+1)+"	"+order.getName()+"	"+order.getDishes()+"	"+order.getDayTime()+"	"+order.getAddress()+"	"+order.getAmount()+"	"+order.getState());
				}
				if(alr.size()<1) {
					System.out.println("当前无订单，无需签收！");
				}else {
					System.out.println("请输入要删除的订单编号：");
					int a1 = cxj.nextInt();
					Order order = (Order)alr.get(a1-1);
					if(order.getState().equals("已预定")) {
						System.out.println("此订单未签收，无法删除！");
					}else {
						alr.remove(a1-1);
						System.out.println("已删除！");
					}
				}
				System.out.println("按0返回：");
				int k4 = cxj.nextInt();
				if(k4==0) {
					ver = true;
					break;
				}
			case 5:
				System.out.println("******我要点赞*******");
				System.out.print("编号	"+"菜名	"+"单价	"+"评价
");
				for(int i = 0;i<al.size();i++) {
					Menu me = (Menu)al.get(i);
					System.out.println((i+1)+"	"+me.getDishes()+"	"+me.getPrice()+"	"+me.getEvaluate());
				}
				
				System.out.println("请输入您要点赞的菜品：");
				int i = cxj.nextInt();
				Menu me = (Menu)al.get(i-1);
				me.setEvaluate(me.getEvaluate()+1);
				System.out.println("点赞成功！");
				
				System.out.println("按0返回：");
				int k5 = cxj.nextInt();
				if(k5==0) {
					ver = true;
					break;
				}
			case 6:	
				System.out.println("谢谢光临，下次再见！");
				ver = false;
				break;

			}
		}while(ver);

	}
}

　　　　测试结果示例：