Java数组实现客房管理

package day04hw;

import java.util.Scanner;

public class HotelMgmt {
	private final static int FLOOR = 10;
	private final static int ROOM = 8;
	private String[][] rooms;
	
	public HotelMgmt() {
		rooms = new String[HotelMgmt.FLOOR][HotelMgmt.ROOM];
	}
	//查询房间
	public void search() {
		//rooms.length  FLOOR
		//rooms[i].length  ROOM
		System.out.print(" \t");
		for (int i=0; i<HotelMgmt.ROOM; i++) {
			System.out.print((i+1)+"\t");
		}
		System.out.println();
		for (int i=HotelMgmt.FLOOR-1; i>=0; i--) {
			for (int j=0; j<HotelMgmt.ROOM; j++) {
				if (j==0) {
					System.out.print((i+1)+"\t");
				}
				System.out.print((rooms[i][j]==null?"-":rooms[i][j])+"\t");
			}
			System.out.println();
		}
			
	}
	//入住
	public void in(int floor, int room, String username) {
		if (floor > HotelMgmt.FLOOR || floor <= 0
				|| room > HotelMgmt.ROOM || room <=0) {
			System.out.println("您所输入的房间不存在!");
		} else {
			if (rooms[floor-1][room-1] != null) {
				System.out.println("您所输入的房间已入住,入住失败!");
			} else {
				System.out.println(username+"入住 ["+floor+"] 层 " +
						"["+room+"] 号房间!");
				rooms[floor-1][room-1] = username;
			}
		}
	}
	//退房
	public void out(int floor, int room) {
		if (floor > HotelMgmt.FLOOR || floor <= 0
				|| room > HotelMgmt.ROOM || room <=0) {
			System.out.println("您所输入的房间不存在!");
		} else {
			if (rooms[floor-1][room-1] == null) {
				System.out.println("您所输入的房间未入住,退房失败!");
			} else {
				System.out.println(rooms[floor-1][room-1]+"退房 ["+floor+"] 层 " +
						"["+room+"] 号房间!");
				rooms[floor-1][room-1] = null;
			}
		}
	}
	
	public void showCommand() {
		System.out.println("command :查询所有命令");
		System.out.println("search  ：查询所有房间的状态");
		System.out.println("in 1202 tangliang  ：姓名为tangliang的客人入住1202房间");
		System.out.println("out 1202：1202房间退房");
		System.out.println("quit：退出程序");
	}
	
	public void console() {
		Scanner scanner = new Scanner(System.in);
		System.out.println("欢迎使用山寨版酒店管理系统!");
		showCommand();
		while (true) {
			System.out.println("\n请输入命令:");
			String command = scanner.nextLine();
			String[] commands = command.split(" ");
			if (commands[0].equalsIgnoreCase("command")) {
				showCommand();
			} else if (commands[0].equalsIgnoreCase("search")) {
				search();
			} else if (commands[0].equalsIgnoreCase("in")) {
				String roomInfo = commands[1];
				String username = commands[2];
				int floor = Integer.parseInt(roomInfo.substring(0,2));
				int room = Integer.parseInt(roomInfo.substring(2));
				in(floor, room, username);
			} else if (commands[0].equalsIgnoreCase("out")) {
				String roomInfo = commands[1];
				int floor = Integer.parseInt(roomInfo.substring(0,2));
				int room = Integer.parseInt(roomInfo.substring(2));
				out(floor, room);
			} else if (commands[0].equalsIgnoreCase("quit")) {
				System.out.println("谢谢使用,再见!");
				break;
			} else {
				System.out.println("您所输入的命令不存在! 请输入command进行命令查询！");
			}
		}	
	}
	
	public static void main(String[] args) {
		HotelMgmt system = new HotelMgmt();
		system.console();
	}
}

 

 

package tarena;

import java.io.*;
import java.util.Arrays;
//自己写的
public class Hotel {

	/**
	 * @param args
	 */
	private String[][] rooms;

	private final static int FLOOR = 20;

	private final static int ROOM = 10;

	public Hotel() {
		rooms = new String[Hotel.FLOOR][Hotel.ROOM];
		for (int i = 0; i < rooms.length; i++)
			Arrays.fill(rooms[i], "_");
	}

	public void search() {
		System.out.print("\t");
		for (int i = 0; i < rooms[0].length; i++)
			System.out.print((i + 1) + "\t");
		System.out.println();

		for (int i = rooms.length - 1; i >= 0; i--) {
			for (int j = 0; j < rooms[i].length; j++) {
				if (j == 0) {
					System.out.print((i + 1) + "\t");
				}
				System.out.print(rooms[i][j] + "\t");
			}
			System.out.println();
			System.out.println();
		}
	}

	public void in(int floor, int room, String name) {
		if (floor > (rooms.length) || floor <= 0 || room > (rooms[1].length)
				|| room <= 0) {
			System.out.println("房间不存在!");
		} else {
			if (rooms[floor - 1][room - 1] != "_") {
				System.out.println("房间已入住,入住失败!");
			} else {
				System.out.println(name + "入住 [" + floor + "] 层 " + "[" + room
						+ "] 号房间!");
				rooms[floor - 1][room - 1] = name;
			}
		}
	}

	public void out(int floor, int room) {
		if (floor > (rooms.length) || floor <= 0 || room > (rooms[1].length)
				|| room <= 0) {
			System.out.println("房间不存在!");
		} else {
			if (rooms[floor - 1][room - 1].equals("_")) {

				System.out.println(floor + "层" + room + "号房间空，退房失败");
			} else {
				System.out.println("退" + floor + "层" + room + "号房间");
				rooms[floor - 1][room - 1] = "_";
			}
		}

	}

	public void console() {
		System.out.println("欢迎使用酒店管理系统!");

		while (true) {
			System.out.println("************************************************************");
			System.out.println("search  ：查询所有房间的状态");
			System.out.println("in 1202 tangliang  ：姓名为tangliang的客人入住1202房间");
			System.out.println("out 1202：1202房间退房");
			System.out.println("quit：退出程序");
			System.out.println("\n请输入命令:");

			String str = null;
			try {
				BufferedReader buf;
				buf = new BufferedReader(new InputStreamReader(System.in));
				str = buf.readLine();
				//System.out.println(str);
			} catch (Exception e) {
				System.out.println("error");
			}
			///////////////////////////////////////////////////////////////
			String[] s = str.split(" ");//字符拆分借鉴老师代码
			if (s[0].equalsIgnoreCase("search")) {
				search();
			} else if (s[0].equalsIgnoreCase("in")) {
				String roomInfo = s[1];
				String username = s[2];
				int floor = Integer.parseInt(roomInfo.substring(0, 2));
				int room = Integer.parseInt(roomInfo.substring(2));
				in(floor, room, username);
			} else if (s[0].equalsIgnoreCase("out")) {
				String roomInfo = s[1];
				int floor = Integer.parseInt(roomInfo.substring(0, 2));
				int room = Integer.parseInt(roomInfo.substring(2));
				out(floor, room);
			} else if (s[0].equalsIgnoreCase("quit")) {
				System.out.println("系统安全退出!");
				break;
			} else {
				System.out.println("您所输入的命令不存在! ");
			}
			///////////////////////////////////////////////////////////////
		}
	}

	public static void main(String[] args) {
		Hotel ren = new Hotel();
		ren.console();

	}

}