Question

我是java新手并建立酒店系统。我有三个主要课程房间，楼层和酒店。每个楼层都有相同类型的房间，但房间号码除外。所以我只说10个房间，然后将它们全部交给我的5个楼层，然后将房间号分配到相应楼层的每个房间。房间号码的第一个数字是楼层的数字，其余的数字是1-10。但是，我在酒店的所有房间都被分配了5楼。

Heres我的代码片段。

class Floor
{
    private int floorNo;
    private Room[] Rooms;

    public Floor()
    {
        floorNo = 0;
        Rooms = null;
    }

    public Floor(int f, int t)
    {
        floorNo = f;
        Rooms = new Room[t];
    }

    public void createRooms(Room[] R)
    {
        for (int i = 0; i < 10; i++)
        {
            Rooms[i] = new Room();
            Rooms[i] = R[i];
        }
    }

    public void setRoom(int i, int f, int r)
    {
        Rooms[i].setFloorNo(f);
        Rooms[i].setRoomno(r);
    }

}

public class Main
{
    public static void main(String[] args)
    {
        Room[] Rooms = new Room[10];
        for (int n = 0; n < 10; n++)
        {
            Rooms[n] = new Room();
        }
    }

    Floor[] Floors = new Floor[5];
    for (int n = 0; n < 5; n++)
    {
        Floors[n] = new Floor(n + 1, 10);
        Floors[n].createRooms(Rooms);

        for (int i = 0; i < 10; i++)
        {
            Floors[n].setRoom(i, n + 1, i + 1);
        }
        for (int n = 0; n < 5; n++)
        {
            Floors[n].print();
        }
    }
}

Answer 1

class Floor   
{
    private int floorNo;
    private Room[] Rooms;
    public Floor()
    {
        floorNo=0;
        Rooms=null;

    }
    public Floor(int f, int t)
     {
    floorNo=f;      
    Rooms = new Room[t];

    }
    public void createRooms(Room[] R)
    {   
        for(int i = 0 ; i < 10; i ++)
        {
        Rooms[i] = new Room();
        Rooms[i] = R[i];
        }
    }

    public void setRoom(int i, int f, int r)
    {
    Rooms[i].setFloorNo(f);
    Rooms[i].setRoomno(r,f);
    }
}

class Room
{
    public void setFloorNo(int i)
    {
        System.out.println("floor no is "+i);
    }
    public void setRoomno(int j,int k)
    {
        System.out.println("room no is "+k+""+j);
    }

}

public class main 
{
    public static void main(String[] args) 
    {

     Room [] Rooms= new Room[10];
     for(int n = 0; n < 10; n++)
     {
         Rooms[n] = new Room ();
     }

     Floor [] Floors= new Floor[5];
     for(int n=0; n<5; n++)
     {
     Floors[n] = new Floor (n+1,10);
     Floors[n].createRooms(Rooms);
     }

     for(int n=0; n < 5; n++)
     { 
         for(int i=0;i<10;i++)
         Floors[n].setRoom(i, n+1, i+1);
    enter code here
     }
     }

}

Answer 2

你可以尝试这样的smth：

public class Hotel {

    private List<Floor> floors = new ArrayList<>();

    public boolean addFloor(Floor floor) {
        return floors.add(floor);
    }

    public static void main(String[] args) {

        int totalFloors = 5;
        int totalRoomsOnAFloor = 10;

        final Hotel hotel = new Hotel();

        int roomNumber = 0;
        for (int floorNumber = 0; floorNumber < totalFloors; floorNumber++) {
            Floor floor = new Floor(floorNumber);
            for (int floorRoomNumber = 0; floorRoomNumber < totalRoomsOnAFloor; floorRoomNumber++) {
                Room room = new Room(floor, roomNumber++);
                floor.addRoom(room);
                System.out.println("Added " + room.toString());
            }
        }

    }

    public static class Floor {

        private List<Room> rooms = new ArrayList<>();
        private int number;

        public Floor(int number) {
            this.number = number;
        }

        public boolean addRoom(Room room) {
            return rooms.add(room);
        }

        public int getNumber() {
            return number;
        }

        @Override
        public String toString() {
            return "Floor{" +
                    "number=" + number +
                    '}';
        }

    }

    public class Room {

        private final Floor floor;
        private final int number;

        public Room(Floor floor, int number) {
            this.floor = floor;
            this.number = number;
        }

        public int getNumber() {
            return number;
        }

        public Floor getFloor() {
            return floor;
        }

        @Override
        public String toString() {
            return "Room{" +
                    "number=" + number +
                    ", on the floor=" + floor +
                    '}';
        }

    }

}

输出：

Added Room{number=0, on the floor=Floor{number=0}}
Added Room{number=1, on the floor=Floor{number=0}}
Added Room{number=2, on the floor=Floor{number=0}}
...
Added Room{number=47, on the floor=Floor{number=4}}
Added Room{number=48, on the floor=Floor{number=4}}
Added Room{number=49, on the floor=Floor{number=4}}

在数组中设置值的问题

2 个答案: