Java如何制作点菜程序 java制作点菜系统

importjava.time.LocalDate;importjava.time.LocalDateTime;//import java.util.ArrayList;
importjava.util.Collections;importjava.util.HashMap;importjava.util.List;importjava.util.Map;importjava.util.Scanner;//import java.util.Set;
public class AdminSys implements DAO{static Map map = new HashMap<>();//static Set keys = map.keySet();
UserSys u = newUserSys();
OrderSys o= newOrderSys();
DishesSys d= newDishesSys();
Scanner sc= newScanner(System.in);/*** 添加菜品*/
public voidaddDishes() {
System.out.println("请输入您要添加的菜品:(按照:菜品ID/菜品名/菜品类型/单价/月销量/总数量)");
String str=sc.next();
String[] info= str.split("/");// if (info.length < 6) {
System.out.println("天啦撸，输入失败啦，请重新输入！");
addDishes();
}else{
LocalDate dtime=LocalDate.now();
Dishes t= new Dishes(info[0], info[1], info[2], dtime, Double.parseDouble(info[3]),
Integer.parseInt(info[4]), Integer.parseInt(info[5]));
d.insert(t);
System.out.println("小主,恭喜你！添加成功了");
}
}/*** 查看所有菜品信息(包含分页功能)*/
public void showAllDishes(intpageSize) {
List list =d.findAll();int start = 0;//先写一个死循环，进入else后break掉
while (true) {if (list.size() > (pageSize +start)) {
System.out.println(list.subList(start, pageSize+start));
}else{
System.out.println(list.subList(start, list.size()));break;
}
start= start +pageSize;
}
}/*** 查看指定类别的菜品信息
**/
public voidselecBytypeOfAdmin() {
System.out.println("请输入您要查询菜品的类别：");
String typename=sc.next();
d.selectBytype(typename);
}/*** 根据菜品id修改菜品价格*/
public voidselectByDishesID() {
System.out.println("请输入您要查询的菜品id：");
String id=sc.next();
Dishes dish=d.findById(id);if (dish == null) {
System.out.println("没有当前id的菜品呢");
}else{
System.out.println("当前菜品为：" +dish);
System.out.println("请输入新的菜品单价：");double newprice =sc.nextDouble();
Dishes t= newDishes(dish.getdID(), dish.getDname(), dish.getDtype(), dish.getDtime(), newprice,
dish.getDsales(), dish.getDstocks());
d.insert(t);
System.out.println("修改成功" +d.findById(t.getdID()));
}
}/*** 删除指定id的菜品
*
*@paramargs*/
public voiddeleteDishes() {
System.out.println("请输入您要删除的菜品id");
String id=sc.next();
d.delete(id);
System.out.println("删除成功！！");
}/*** 添加客户*/
public voidaddUser() {
System.out.println("请输入您要添加的用户:按照(id/姓名/性别/密码/送餐地址/手机号)");
String str=sc.next();
String[] info= str.split("/");if (info.length < 6) {
System.out.println("您输入的信息有误，请重新输入....");
addUser();
}else{
LocalDateTime utime=LocalDateTime.now();
u.insert(new User(info[0], info[1], info[2], info[3], info[4], info[5], utime));
System.out.println("添加成功");
}
}/*** 查看客户列表*/
public voidfindUser() {
List userlist =u.findAll();for(User user : userlist) {
System.out.println(user);
}
}/*** 根据id查找指定用户*/
publicUser findUserByid(String id) {returnu.findById(id);
}/*** 删除指定id的客户*/
public voiddeleteUserByAdmin() {
System.out.println("请输入您要删除的id：");
String id=sc.next();
u.delete(id);
}/*** 订单列表显示*/
public voidshowAllOrder() {
List allOrder =o.findAll();for(Order order : allOrder) {
System.out.println(order);
}
}/*** 根据订单id修改订单状态*/
public voidchangeOrderValue() {
System.out.println("请输入您要修改状态的订单id");
String id=sc.next();
Order order=o.findById(id);if (order == null) {
System.out.println("没有当前id的订单，请检查输入");
}else{
System.out.println("已找到当前id订单" +order);
System.out.println("请输入您要修改的状态：0:未支付 1：已支付 2：配送中 3：已完成");int value =sc.nextInt();
Order t= newOrder(order.getOrderID(), order.getUtime(), order.getDishes(), order.getOrdernum(),
order.getuID(), order.getOrderprice(), value);
o.insert(t);
System.out.println("修改成功了！！！");
}
}/*** 显示所有菜品(按菜品销量从高到低排序输出)*/
public voidshowAllDishesByUser() {
List list =d.findAll();
Collections.sort(list, (p1, p2)-> p1.getDsales() -p2.getDsales());
System.out.println(list);
}/*** 点餐(输入菜品id和购买数量)*/
public voidshopDishes(User user) {
showAllDishesByUser();
System.out.println("请输入您要购买的id和数量：按照(id/数量)");
String str=sc.next();
String[] info= str.split("/");//判断输入是否符合要求，不符合则要求重新输入
if (info.length < 2) {
System.out.println("输入有误，请重新输入：");
shopDishes(user);
}else{
LocalDateTime l=LocalDateTime.now();//String orderID, LocalDateTime utime, Dishes dishes, int ordernum, String uID,//Double orderprice,int orderValue
Order t = new Order(info[0], l, d.findById(info[0]), Integer.parseInt(info[1]), user.getuID(),
o.findById(info[0]).getOrderprice(), o.findById(info[0]).getOrderValue());
o.insert(t);
System.out.println("订单已生成！！！" + o.findById(info[0]));
}
}/*** 根据菜品类别显示所有菜品*/
public voidShowOfTypeByUser() {
System.out.println("请输入您要查找的类别：");
String str=sc.next();
System.out.println(d.findByType(str));
}/*** 查看所有订单(当前登录用户的)*/
public voidshowAllOrderByUser(User user) {
List list =o.findByuId(user.getuID());for(Order order : list) {
System.out.println(order);
}
}/*** 修改密码(当前登录用户的)*/
public voidchangePwdByUser(User user) {
u.changepwd(user.getuID());
System.out.println("修改成功！！");
}/*** 个人信息显示*/
public voidshowByUser(User user) {
User findById=u.findById(user.getuID());
System.out.println(findById);
}//待补充功能，删除管理员
@Overridepublic voiddelete(String id) {
}//待补充功能，添加管理员
@Overridepublic voidinsert(Admin t) {//TODO Auto-generated method stub
}//待补充功能，通过id即账号查找管理员
@OverridepublicAdmin findById(String id) {returnmap.get(id);
}//待补充功能，显示所有管理员
@Overridepublic ListfindAll() {//TODO Auto-generated method stub
return null;
}//先设置系统默认数据
public voidaddMessage() {
map.put("qwl", new Admin("10086", "qwl", "123456"));
LocalDate time=LocalDate.now();
Dishes d1= new Dishes("1", "红烧猪蹄", "肉类", time, 12.5, 20, 30);
d.insert(d1);
Dishes d2= new Dishes("2", "鸡公煲", "肉类", time, 21.5, 30, 20);
d.insert(d2);
Dishes d3= new Dishes("3", "麻辣香锅", "火锅类", time, 30, 5, 10);
d.insert(d3);
Dishes d4= new Dishes("4", "水煮肉片", "肉类", time, 15, 12, 15);
d.insert(d4);
Dishes d5= new Dishes("5", "水果沙拉", "水果类", time, 6, 70, 60);
d.insert(d5);//String orderID, LocalDateTime utime, Dishes dishes, int ordernum, String uID,//Double orderprice,int orderValue
LocalDateTime localdatetime =LocalDateTime.now();
Order o1= new Order("1", localdatetime, d1, 10, "1001", 60.0, 1);
o.insert(o1);
Order o2= new Order("2", localdatetime, d2, 5, "1002", 50.0, 10);
o.insert(o2);
Order o3= new Order("3", localdatetime, d3, 5, "1003", 40.0, 5);
o.insert(o3);
Order o4= new Order("4", localdatetime, d4, 5, "1004", 30.0, 6);
o.insert(o4);
Order o5= new Order("5", localdatetime, d5, 5, "1005", 20.0, 8);
o.insert(o5);//String uID, String uname, String usex, String upwd, String uadress, String//utel, LocalDateTime utime
User u1 = new User("1001", "张三", "男", "123456", "湖北", "13545286487", localdatetime);
u.insert(u1);
User u2= new User("1002", "李四", "男", "234567", "湖南", "15927948976", localdatetime);
u.insert(u2);
User u3= new User("1003", "王五", "男", "345678", "江苏", "15927986854", localdatetime);
u.insert(u3);
User u4= new User("1004", "刘柳", "女", "456789", "浙江", "18771580860", localdatetime);
u.insert(u4);
User u5= new User("1005", "赵琦", "女", "567890", "新疆", "18771580750", localdatetime);
u.insert(u5);
}
}