java小练习

package com.lut.javase.array;

import java.util.Objects;

/*
* 第二题：（java软件工程师人生路上第一个小型项目。锻炼一下面向对象。）
    为某个酒店编写程序：酒店管理系统，模拟订房、退房、打印所有房间状态等功能。
    1、该系统的用户是：酒店前台。
    2、酒店使用一个二维数组来模拟。“Room[][] rooms;”
    3、酒店中的每一个房间应该是一个java对象：Room
    4、每一个房间Room应该有：房间编号、房间类型、房间是否空闲.
    5、系统应该对外提供的功能：
        可以预定房间：用户输入房间编号，订房。
        可以退房：用户输入房间编号，退房。
        可以查看所有房间的状态：用户输入某个指令应该可以查看所有房间状态。
        * 声明一个类的时候，要重写equals方法以及toString方法，并对其属性进行封装*/
public class HomeWork02 {
    public static void main(String[] args) {
/*        Room room = new Room(123, "套房", true);
        System.out.println(room);*/
        Hotel hotel = new Hotel();
        hotel.printHotel();
        hotel.order(101);
        hotel.exit(101);
    }
}

class Room{
    private int roomId;
    private String type;
    private boolean status;

    public int getRoomId() {
        return roomId;
    }

    public void setRoomId(int roomId) {
        this.roomId = roomId;
    }

    public String getType() {
        return type;
    }

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

    public boolean getStatus() {
        return status;
    }

    public void setStatus(boolean status) {
        this.status = status;
    }

    public Room(int roomId, String type, boolean status) {
        this.roomId = roomId;
        this.type = type;
        this.status = status;
    }

    public Room() {
    }
    
    public String toString() {
        return "["+"Id=" + roomId + ", type=" + type  + ", status=" + status+"]"+"  ";
    }
    public boolean equals(Object obj){ //equals方法用来比较两个对象是否相同，
        if(obj==null || !(obj instanceof Room)) return false;
        if(this == obj) return true;
        Room room = (Room)obj;
        return this.getRoomId() == room.getRoomId();
    }
}


class Hotel{
    Room[][] rooms;;

    public Hotel() {
        rooms = new Room[3][10];
        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, "single",true);
                if(i == 1)
                    rooms[i][j] = new Room((i+1)*100+j, "standard",true);
                if(i == 2)
                    rooms[i][j] = new Room((i+1)*100+j, "suit",true);
            }
        }
    }
    public void printHotel(){
        for(int i = 0; i < rooms.length; i++){
            for(int j = 0; j < rooms[i].length; j++){
                Room room = rooms[i][j];
                System.out.print(room);
            }
            System.out.println();
        }

    }
    public void order(int orderNum){
        Room room = rooms[orderNum / 100 - 1][orderNum % 100 - 1];
        room.setStatus(false);
        System.out.println("order"+room.getRoomId()+"success");
    }
    public void exit(int exitNum){
        Room room = rooms[exitNum / 100 - 1][exitNum % 100 - 1];
        room.setStatus(true);
        System.out.println("exit"+room.getRoomId()+"success");
    }
}

标签：java,room,int,练习,rooms,type,public,Room
来源： https://www.cnblogs.com/kelvin-liu/p/16446770.html