Java小白入门第十五弹 酒店管理系统（实例一）

酒店管理系统（主要是对以前学面向对象进行总结）
总结Java基本语法
总结Java面向对象
总结Java集合框架
总结Java流程控制
具体的案例分析分析：这个系统需要房间（设计具体的房间像层数，门牌号，房间有无人住的状态信息），用户（用户的身份信息，名字，居住的方间，居住的天数），房间与用户之间的一个监管者（主要就是实现入住和退房的操作），主程序（进行测试）。

每一个子程序的代码如下：
用户部分：

package com.csdn;

public class Customer {
	private int cid;
	private String name;
	private Room room;
	private int days;
	
	public int getCid() {
		return cid;
	}
	public void setCid(int cid) {
		this.cid = cid;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public Room getRoom() {
		return room;
	}
	public void setRoom(Room room) {
		this.room = room;
	}
	public int getDays() {
		return days;
	}
	public void setDays(int days) {
		this.days = days;
	}
	public Customer() {
		super();
	}
	public Customer(int cid, String name, Room room, int days) {
		super();
		this.cid = cid;
		this.name = name;
		this.room = room;
		this.days = days;
	}
}

房间部分：

package com.csdn;

public class Room {
	private String no;
	private int isBooked;//0未入住 1已入住
	
	
	public Room() {
		super();
	}

	public Room(String no, int isBooked) {
		super();
		this.no = no;
		this.isBooked = isBooked;
	}


	public String getNo() {
		return no;
	}

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

	public int getIsBooked() {
		return isBooked;
	}

	public void setIsBooked(int isBooked) {
		this.isBooked = isBooked;
	}
	@Override
	public String toString() {
		return this.no+","+(this.isBooked==1 ? "有人":"空房");
	}
}

房间与用户之间的监管者：

package com.csdn;

import java.util.ArrayList;

public class HotelManager {
	ArrayList<Room> roomList = new ArrayList<Room>();
	
	public void initRoom() {
		Room r1 = new Room("101", 0);
		Room r2 = new Room("102", 0);
		Room r3 = new Room("103", 0);
		Room r4 = new Room("104", 0);
		Room r5 = new Room("105", 0);
		
		Room r6 = new Room("201", 0);
		Room r7 = new Room("202", 0);
		Room r8 = new Room("203", 0);
		Room r9 = new Room("204", 0);
		Room r10 = new Room("205", 0);
		
		roomList.add(r1);
		roomList.add(r2);
		roomList.add(r3);
		roomList.add(r4);
		roomList.add(r5);
		
		roomList.add(r6);
		roomList.add(r7);
		roomList.add(r8);
		roomList.add(r9);
		roomList.add(r10);
	}
	public void checkIn(String roomNo) {
		for(Room room : roomList) {
			if (room.getNo().equals(roomNo)) {
				room.setIsBooked(1);
				break;
			}
		}
	}
	public void checkOut(String roomNo) {
		for (Room room : roomList) {
			if(room.getNo().equals(roomNo)) {
				room.setIsBooked(0);
				break;
			}
		}
		
	}
	
	public void show() {
		for (Room room : roomList) {
			System.out.println(room);
		}
	}
}

主程序：

package com.csdn;

import java.util.Scanner;

public class Test {
	public static void main(String[] args) {
		String meun = "请选择： \n1: 入住\n2: 退房\n3: 查房\n4: 退出系统";
		HotelManager hm = new HotelManager();
		hm.initRoom();
		System.out.println(meun);
		Scanner s = new Scanner(System.in);
		while(true) {
			if (s.hasNext()) {
				int choice = s.nextInt();
				switch (choice) {
				case 1:
					System.out.println("请输入入住房间号：");
					Scanner s1 = new Scanner(System.in);
					if (s1.hasNext()) {
						String no = s1.next();
						hm.checkIn(no);
						System.out.println("入住成功！");
					}
					break;
				case 2:
					System.out.println("请输入退房房间号：");
					Scanner s2 = new Scanner(System.in);
					if (s2.hasNext()) {
						String no = s2.next();
						hm.checkOut(no);
						System.out.println("退房成功！");
					}
					break;
				case 3:
					hm.show();
					break;
				case 4:
					System.out.println("bye bey!");
					System.exit(0);
				default:
					break;
				}
			}
		}
	}
}