我在下面有这段代码。除了使用Room Class 中的 toString 方法的输出之外,我了解其他所有内容。在HotelMain类中,我只是调用了Hotel 类中的displayRooms 方法。但是,当我运行程序时,toString 输出显示在控制台中。
如果我是对的 toString() 是对象中值的文本表示。但是,我不确定我在哪里调用了 toString 方法。
有人可以解决我的困境吗?谢谢你。
酒店等级
public class Hotel {
private String hotelName;
private Room[] rooms;
public Hotel(String hotelName, int numberOfRooms) {
this.hotelName = hotelName;
this.rooms = new Room[numberOfRooms];
}
public void addRooms(Room room) {
int position = -1;
for (int i = 0; i < this.rooms.length; i++) {
Room tempRoom = rooms[i];
if (tempRoom == null) {
position = i;
break;
}
}
if (position != -1) {
rooms[position] = room;
System.out.println("New room added at postion " + position);
} else {
System.out.println("Addition of room failed.");
}
}
public void displayRooms() {
System.out.println("The Hotel: " + this.hotelName + " has the following rooms.");
for (int i = 0; i < this.rooms.length; i++) {
Room tempRoom = rooms[i];
if (tempRoom != null) {
System.out.println(tempRoom);
}
}
}
房间等级
public class Room {
private int roomNumber;
private int numberOfBeds;
private boolean smokingOrNonSmoking;
public Room() {
}
public Room(int roomNumber, int numberOfBeds, boolean smokingOrNonSmoking) {
this.roomNumber = roomNumber;
this.numberOfBeds = numberOfBeds;
this.smokingOrNonSmoking = smokingOrNonSmoking;
}
@Override
public String toString() {
return "Room [roomNumber=" + roomNumber + ", numberOfBeds="
+ numberOfBeds + ", smokingOrNonSmoking=" + smokingOrNonSmoking
+ "]";
}
}
梅恩酒店
public class HotelMain {
public static void main(String[] args) {
Hotel hotel = new Hotel("MahaRani Chain of Hotels", 10);
Room room1 = new Room(4, 2, true);
Room room2 = new Room(2, 1, false);
Room room3 = new Room(6, 3, true);
Room room4 = new Room(6, 4, false);
hotel.addRooms(room1);
hotel.addRooms(room3);
hotel.addRooms(room4);
hotel.addRooms(room2);
hotel.displayRooms();
}
}
安慰