基于数组的简易宾馆系统

package Com.czie.iot1913;

import java.util.Scanner;

/**
 * @author 1944900433@qq.com
 * @date 2022-02-20 18:56
 */
public class HotelManagementSystem {
    public static void main(String[] args) {
        Hotel hotel = new Hotel();
        System.out.println("欢迎来到刘品水的宾馆系统");
        System.out.println("输入1为查看房间 输入2为订房 输入3退房 输入0退出系统");
        while (true){
            Scanner sc = new Scanner(System.in);
            int input = sc.nextInt();
            if (input==1){
                hotel.print();
            }
            else if (input==2){
                int roomno=sc.nextInt();
                hotel.order(roomno);
            }
            else if (input==3){
                int roomno=sc.nextInt();
                hotel.exit(roomno);
            }
            else if (input==0){
                System.out.println("再见");
                System.exit(0);

               /**
               *System.out.println("再见");
                *return;
                */
            }
            else {
                System.out.println("你输入错误啦,请重新输入");
            }
        }

    }
}

package Com.czie.iot1913;

/**
 * @author 1944900433@qq.com
 * @date 2022-02-20 18:56
 */
public class Hotel {
private Room[][]rooms;

    public Hotel() {
        //一共有几层 每层类型 每层的标号
        rooms = new Room[3][10];
        //动态初始化
        for (int i = 0; i < rooms.length; i++) {
            for (int j = 0; j < rooms[i].length; j++) {
                if (i == 0) {
                    rooms[i][j] = new Room((i + 1) * 100 + j + 1, "单人间", true);
                } else if (i == 1) {
                    rooms[i][j] = new Room((i + 1) * 100 + j + 1, "标准间", true);
                } else if (i == 2) {
                    rooms[i][j] = new Room((i + 1) * 100 + j + 1, "总统套房", true);
                }

            }
        }
    }
    public void print(){
        for (int i = 0; i < rooms.length; i++) {
            for (int j = 0; j < rooms[i].length; j++) {
                System.out.print(rooms[i][j]);
            }
            System.out.println();
        }
    }
    public void order(int roomno){
        Room room=rooms[roomno/100-1][roomno%100-1];
        room.setState(false);
        System.out.println(roomno+"已订房");
    }
    public void exit(int roomno){
        Room room=rooms[roomno/100-1][roomno%100-1];
        room.setState(true);
        System.out.println(roomno+"已退房");
    }
    
}

package Com.czie.iot1913;

import java.util.Objects;

/**
 * @author 1944900433@qq.com
 * @date 2022-02-20 18:56
 */
public class Room {
    private int no;
    private String type;
    private boolean state;

    public Room() {
    }

    public Room(int no, String type, boolean state) {
        this.no = no;
        this.type = type;
        this.state = state;
    }

    public int getNo() {
        return no;
    }

    public void setNo(int no) {
        this.no = no;
    }

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    public boolean getState() {
        return state;
    }

    public void setState(boolean state) {
        this.state = state;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        Room room = (Room) o;
        return no == room.no && state == room.state && Objects.equals(type, room.type);
    }

   /* @Override
    public String toString() {
        return "Room{" +
                "no=" + no +
                ", type='" + type + '\'' +
                ", state=" + state +
                '}';
    }*/

    @Override
    public String toString() {
        //写死了
        //return "[102,单人间,空闲]";
        //动态（把一个变量塞到一个字符串当中）
        //加一个双引号，双引号中间加两个加号 两个加号之间加变量名
        return "[" + no + "," + type + "," + (state ? "空闲" : "占用") + "]";
    }
}