用java写一个程序:三位好友准备去某地旅游,现要在网上预订酒店。 现有 7 家酒店以供候选,分别以s1,s2,...,s7表示,三位用户分 别用u1,u2,u3表示。三人主要考虑酒店的三个属性:位置、是 否提供餐饮和装修风格。三个人对不同的属性有不同的偏好,使用CP-nets的思想返回选择结果
时间: 2023-02-24 14:03:43 浏览: 80
以下是 Java 代码实现:
```
import java.util.ArrayList;
import java.util.List;
public class CPNetHotelSelection {
public static void main(String[] args) {
// 初始化酒店信息
Hotel s1 = new Hotel("s1", Location.CITY_CENTER, true, Decoration.MODERN);
Hotel s2 = new Hotel("s2", Location.SUBURB, false, Decoration.CLASSIC);
Hotel s3 = new Hotel("s3", Location.COUNTRYSIDE, true, Decoration.SIMPLE);
Hotel s4 = new Hotel("s4", Location.COUNTRYSIDE, false, Decoration.MODERN);
Hotel s5 = new Hotel("s5", Location.CITY_CENTER, true, Decoration.SIMPLE);
Hotel s6 = new Hotel("s6", Location.SUBURB, false, Decoration.MODERN);
Hotel s7 = new Hotel("s7", Location.CITY_CENTER, false, Decoration.CLASSIC);
List<Hotel> hotels = new ArrayList<>();
hotels.add(s1);
hotels.add(s2);
hotels.add(s3);
hotels.add(s4);
hotels.add(s5);
hotels.add(s6);
hotels.add(s7);
// 初始化用户偏好
User u1 = new User("u1", Preference.CITY_CENTER, Preference.FOOD, Preference.MODERN);
User u2 = new User("u2", Preference.COUNTRYSIDE, Preference.NO_FOOD, Preference.SIMPLE);
User u3 = new User("u3", Preference.SUBURB, Preference.FOOD, Preference.CLASSIC);
List<User> users = new ArrayList<>();
users.add(u1);
users.add(u2);
users.add(u3);
// 根据用户偏好进行酒店选择
List<Hotel> selectedHotels = new ArrayList<>();
for (Hotel hotel : hotels) {
boolean isSelected = true;
for (User user : users) {
if (!user.isSatisfied(hotel)) {
isSelected = false;
break;
}
}
if (isSelected) {
selectedHotels.add(hotel);
}
}
// 输出结果
System.out.println("选择的酒店如下:");
for (Hotel hotel : selectedHotels) {
System.out.println(hotel.name);
}
}
}
// 酒店位置枚举
enum Location {
CITY_CENTER,
SUBURB,
COUNTR