Help me write a code for a Javaweb-based hotel management system

I can provide you with some reference codes, but you need to customize your own hotel management system according to your own needs: //Create a class to manage hotels public class HotelManager { //Define the variables needed by the hotel private int numRooms; private int numFloors; private int numGuests; private ArrayList rooms;

//构造函数
public HotelManager(int numRooms, int numFloors) {
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