Java模拟实现酒店管理系统

## 酒店管理系统
package com.manage.system;
/**
*测试类
*/
import java.util.Scanner;

public class Test {

    public static void main(String[] args) {
        System.out.println("请输入相应的功能：【1】查询 【2】订房【3】退房 【4】退出系统");
        Hotel hotel = new Hotel();
        Room room = new Room();
        Scanner sc = new Scanner(System.in);
        while (true){
            int a = sc.nextInt();
            if(a == 1){
                hotel.print();
            }
            else if(a == 2){
                System.out.println("请输入你要预定的房间号：");
                int no = sc.nextInt();
                hotel.checkIn(no);
                System.out.println("预定成功！"  + room.getType());
            }
            else if(a ==3){
                System.out.println("请输入你要退订的房间号：");
                int no = sc.nextInt();
                hotel.checkOut(no);
                hotel.print();
                System.out.println("推定成功！" );
            }
            else if(a == 4){
                return;
            }
        }

    }
}

package com.manage.system;
/**
 * 创建酒店对象：
 *
 * */
public class Hotel {
	//定义房间数组用来存储n个房间对象
    Room[][] rooms;
    //生成构造方法，初始化数据

    public Hotel() {
        //默认该酒店有三层,每层有五个房间
        rooms = new Room[3][5];
        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 ,"标准间",true );
                }else if(i == 1){
                    rooms[i][j]  = new Room((i + 1) * 100 +j +1 ,"大床房",true );
                }
                else if( i == 2){
                    rooms[i][j]  = new Room((i + 1) * 100 +j +1 ,"豪华间",true );
                }

            }
        }
    }
    //预定酒店
    //假设预定的是205,
    public void checkIn(int orderNo){
       Room room =  rooms[orderNo / 100 -1][orderNo % 100 -1];
       room.setState(false);
    }
    //退房
    public void checkOut(int orderNo){
        Room room =  rooms[orderNo / 100 -1][orderNo % 100 -1];
        room.setState(true);
    }
    //打印信息
    public void print(){
        for (int i = 0; i <rooms.length ; i++) {
            for (int j = 0; j <rooms[i].length ; j++) {
                Room room = rooms[i][j];
                System.out.println(room.toString());
            }
            System.out.println();
        }
    }
    //有参的构造函数
    public Hotel(Room[][] rooms) {
        this.rooms = rooms;
    }

}
package com.manage.system;

public class Room {
    //房间编号
    private int roomNo;
    //房间类型
    private String type;
    //房间状态:true表示空闲,false表示占用
    private boolean state;
    //无参的构造函数
    public Room() {

    }

    //有参的构造函数
    public Room(int roomNo, String type, boolean state) {
        this.roomNo = roomNo;
        this.type = type;
        this.state = state;
    }

    public int getRoomNo() {
        return roomNo;
    }

    public void setRoomNo(int roomNo) {
        this.roomNo = roomNo;
    }

    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;
    }
    //重写toString()方法用来将对象转换为字符串的形式输出

    @Override
    public String toString() {

        return "[" + "房间编号->" + this.getRoomNo() + "\t" +
                "房间类型->" + this.getType()   + "\t" + "房间状态->" + (this.getState() ? "空闲": "占用") + "]";
    }

    //重写equals方法用来比较两个对象是否相等
    public boolean equals(Object obj) {
        if(obj == null || !(obj instanceof Room)) return false;
        if(this == obj) return true;
        Room room = (Room)obj;
        if(this.roomNo == room.getRoomNo()) return true;
        return false;
    }
}