【Java学习笔记】二维数组模拟酒店管理系统

首先创建一个房间类Room

package com.longya.HOTEL;public class Room{    private int no;    private String type;    private boolean occupancy;    public Room(int no, String type, boolean occupancy)    {        this.no = no;        this.type = type;        this.occupancy = occupancy;    }    //重写toString()——按照规定格式输出房间信息    public String toString()    {        String str = occupancy ? "占用" : "空闲";        return "[no=" + no + "，房型=" + type + "，状态=" + str + "]";    }    //setter/getter    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 getOccupancy(){ return occupancy;}    public void setOccupancy(boolean occupancy){ this.occupancy = occupancy;}}

然后，创建一个旅馆类Hotel

package com.longya.HOTEL;public class Hotel{    Room[][] rooms;    public Hotel(){        rooms = new Room[5][9];  //默认创建5层楼，每层9个房间        //给所有房间编号        for (int i = 0; i < rooms.length; i++)        {            for (int j = 0; j < rooms[i].length; j++)            {                /*                    房间分布设置：1楼、2楼为标准间，3楼为单人间，4楼为情侣间，5楼为豪华间                */                if (i == 0 || i == 1)                {                    rooms[i][j] = new Room((i + 1) * 100 + j + 1, "标准间", false);                }else if (i == 2)                {                    rooms[i][j] = new Room((i + 1) * 100 + j + 1, "单人间", false);                }else if (i == 3)                {                    rooms[i][j] = new Room((i + 1) * 100 + j + 1, "情侣间", false);                }else if (i == 4)                {                    rooms[i][j] = new Room((i + 1) * 100 + j + 1, "豪华间", false);                }            }        }    }    //显示所有房间信息    public void display()    {        for (int i = 0; i < rooms.length; i++)        {            for (int j = 0; j < rooms[i].length; j++)            {                if (j % 3 == 0)                {                    System.out.println(); //每行显示三个房间的信息                }                System.out.print(rooms[i][j] + "\t");            }            System.out.println();        }    }    //订房    public void reserve(int no)    {        for (int i = 0; i < rooms.length; i++)        {            for (int j = 0; j < rooms[i].length; j++)            {                if (rooms[i][j].getNo() == no)                {                    rooms[i][j].setOccupancy(true);                     System.out.println("订房成功！您预定的房间编号为：" + no);                    return;                }            }        }    }    //退房    public void checkout(int no)    {        for (int i = 0; i < rooms.length; i++)        {            for (int j = 0; j < rooms[i].length; j++)            {                if (rooms[i][j].getNo() == no)                {                    rooms[i][j].setOccupancy(false);                     System.out.println("您已成功退掉[" + no + "]房间!");                    return;                }            }        }    }    //根据房间编号，获取房间的占用情况occupancy    public boolean getRoomOccupancy(int no)    {        for (int i = 0; i < rooms.length; i++)        {            for (int j = 0; j < rooms[i].length; j++)            {                if (rooms[i][j].getNo() == no)                {                    return rooms[i][j].getOccupancy();                }            }        }        return false;    }}

最后，创建一个测试类HotelTest

package com.longya.HOTEL;import java.util.*;public class HotelTest{    public static void main(String[] args)    {        Scanner sc = new Scanner(System.in);        System.out.println("-------------------------------------------------- 酒店管理系统 -------------------------------------------------");        Hotel hotel = new Hotel();        hotel.display();  //显示所有房间信息        while(true)        {                       try            {                //订房                System.out.println();                System.out.print("请输入您想要入住的房间编号：");                int no = sc.nextInt();                if (hotel.getRoomOccupancy(no))                {                                       System.out.println("该房间已经有人入住！请重新预定！");                }else{                    hotel.reserve(no);                    hotel.display();                }                //退房                System.out.println();                System.out.print("请输入您想要退房的房间编号：");                no = sc.nextInt();                if (hotel.getRoomOccupancy(no))                {                                       hotel.checkout(no);                    hotel.display();                }else{                    System.out.println("该房间原本就无人入住！请重新输入！");                }            }            catch (Exception e)            {                System.out.println("输入数据有误！请重新进入系统！"); return;            }        }    }}

运行结果如下：

至此程序结束！