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：
