旅店管理系统（控制台版）

[java]代码库

import java.util.Scanner;

/**
 * 旅店管理系统（控制台版）
 * 
 */
public class HotelManager {
	private static String[][] rooms;// 表示房间

	public static void main(String[] args) {
		rooms = new String[10][12];
		String comm;// 表示用户输入的命令
		for (int i = 0; i < rooms.length; i++) {
			for (int j = 0; j < rooms[0].length; j++) {
				rooms[i][j] = "EMPTY";
			}
		}

		while (true) {
			System.out.println("欢迎光临【程序猿】旅店，请输入命令：");
			Scanner sca = new Scanner(System.in);
			System.gc();
			comm = sca.next();
			if ("search".equalsIgnoreCase(comm)) {
				search();
			} else if ("in".equalsIgnoreCase(comm)) {
				int roomNo = sca.nextInt();
				String name = sca.next();
				in(roomNo, name);
			} else if ("out".equalsIgnoreCase(comm)) {
				int roomNo = sca.nextInt();
				out(roomNo);
			} else if ("exit".equalsIgnoreCase(comm)) {
				System.out.println("程序退出...");
				break;

			} else if ("help".equalsIgnoreCase(comm)) {
				System.out
						.println(" in命令格式：in 房号 姓名\n out命令格式：out 房号 姓名\n search命令：查看所有房间状态 \n exit命令：退出");
			} else {
				System.out.println("命令输入错误，请重新输入：");
			}

		}

	}

	private static void out(int roomNo) {
		if ("EMPTY".equals(rooms[(roomNo / 100) - 1][(roomNo % 100) - 1])) {
			System.out.println("该房间没有客人入住，退房失败！");
			return;
		}
		rooms[(roomNo / 100) - 1][(roomNo % 100) - 1] = "EMPTY";
		System.out.println(roomNo + "退房成功！");

	}

	private static void in(int roomNo, String name) {
		if (!"EMPTY".equals(rooms[(roomNo / 100) - 1][(roomNo % 100) - 1])) {
			System.out.println("该房间已经有客人入住！");
			return;
		}
		rooms[(roomNo / 100) - 1][(roomNo % 100) - 1] = name;
		System.out.println(name + "成功入住" + roomNo + "房间！");

	}

	private static void search() {
		for (int i = 0; i < rooms.length; i++) {
			// 打印房间号
			for (int j = 0; j < rooms[0].length; j++) {
				if (j + 1 < 10) {
					System.out.print(i + 1 + "0" + (j + 1) + "	");
				} else {
					System.out.print(i + 1 + "" + (j + 1) + "	");
				}
			}
			// 打印房间状态
			System.out.println();
			for (int j = 0; j < rooms[0].length; j++) {
				System.out.print(rooms[i][j] + "	");
			}
			System.out.println();
		}

	}

}

[代码运行效果截图]