java客房管理小项目_JAVA_编程开发_程序员俱乐部

java客房管理小项目
这个客房管理小项目，适合java初学者练手。功能虽然不多，但是内容很齐全！
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共有5层，每层10间客房，以数字101--509标示；
具有入住，退房，搜索，退出四个简单功能；
public class Hotel {
    static final int floor = 5;
    static final int order = 10;
    private static int countFloor;
    private static int countOrder;
    private static String[][] rooms = new String[floor][order];
   
    //main函数代表酒店的基本功能，入住，退房，查询，其他；
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String temp = null;
        while(true){
            //提醒用户选择输入
            System.out.println("请选择输入  in out search quit : ");
            temp = scan.next();
            int room = 0;
            if("in".equals(temp)){
                while(true){
                    System.out.println("请输入房间号：");
                    room = scan.nextInt();
                    if(isRightRoom(room,1)){
                        break;
                    }
                }
                System.out.println("请输入名字:");
                String name = scan.next();
                if(in(room,name)){
                    System.out.println("恭喜您，入住成功");
                    System.out.println(room + " : "+name);
                }
            }else if("out".equals(temp)){
                while(true){
                    System.out.println("请输入房间号：");
                    room = scan.nextInt();
                    if(isRightRoom(room,0)){
                        break;
                    }
                }
                if(out(room)){
                    System.out.println("退房成功，欢迎下次光临");
                }
            }else if("search".equals(temp)){
                System.out.println("请输入查询的房间号(-1表示全部)");
                room = scan.nextInt();
                search(room);
            }else if("quit".equals(temp)){
                break;
            }else{
                System.out.println("您的输入有误，请再次输入！");
            }
        }
    }
   
    //flag:1 检查房间号输入正确 且 无人入住  0 仅检查房间号输入正确
    private static boolean isRightRoom(int room,int flag) {
        //校验房间号是否输入有误
        countFloor = room / 100 - 1;
        countOrder = room % 100 - 1;
        if(countFloor < 0 || countFloor >= floor || countOrder < 0 || countOrder >= order ){
            System.out.println("输入的房间号有误");
            return false;
        }
        if(flag == 1){
            if(rooms[countFloor][countOrder] != null){
                System.out.println("房间已经入住");
                return false;
            }
        }
        return true;
    }

    //旅馆入住功能实现，in(room,name) countFloor:计算出的楼层 countOrder:计算出的房间顺序
    private static boolean in(int room,String name){
        rooms[countFloor][countOrder] = name;
        return true;
    }
   
    //旅馆退房功能实现,out(room),
    private static boolean out(int room){
        //校验房间号是否有人入住
        if(rooms[countFloor][countOrder] == null){
            System.out.println("房间未曾入住，退房有误");
            return false;
        }
        rooms[countFloor][countOrder] = null;
        return true;
    }
   
    //旅馆搜索功能，search(room)
    private static void search(int room){
        if(room == -1){
            int roomNum = 0;
            for(int i=0;i<floor;i++){
                for(int j=0;j<order;j++){
                    roomNum = (i + 1) * 100 + j + 1;
                    System.out.println(roomNum + "->" +
                            (rooms[i][j] == null ? "empty" : rooms[i][j]));
                }
            }
        }else{
            //校验房间号是否正确
            if(!isRightRoom(room,0)){
                System.out.println("抱歉，房间输入错误！");              
            }else{
                System.out.println(rooms[countFloor][countOrder]);
            }
        }
    }}