数组实现的房间管理

Hotel .java

package day06.homework;public class Hotel {private String[][] room = new String[10][3];public Hotel(){init();}private void init() {for (int i = 0; i < this.room.length; i++) {room[i][0] = "10"+i;//初始化房间号room[i][1] = "null";//初始化用户room[i][2] = "out";//初始化房价的状态}}public void search(){for (int i = 0; i < room.length; i++) {System.out.println(room[i][0]+" "+room[i][1]+" "+room[i][2]);}}public void checkIn(String num,String customerName){boolean isNot = true;for (int i = 0; i < room.length; i++) {if(num.equals(room[i][0])){//num==room[i][0]if("out".equals(room[i][2])){room[i][1]=customerName;room[i][2]="in";isNot = false;System.out.println("操作成功！～～");//return ;}else{System.out.println("该房间已被使用！～～");}}}if(isNot){System.out.println("此房间不存在！～～");}}public void checkOut(String num){boolean isNot = true;for (int i = 0; i < room.length; i++) {if(num.equals(room[i][0])){//num==room[i][0]if("in".equals(room[i][2])){room[i][2]="out";isNot = false;System.out.println("操作成功！～～");//return ;}else{System.out.println("该房间未被使用！～～");}}}if(isNot){System.out.println("此房间不存在！～～");}}}

 

HotelTest .java

package day06.homework.test;import java.util.Scanner;import day06.homework.Hotel;public class HotelTest {public static void main(String[] args) {Hotel hotel = new Hotel();Scanner sc = new Scanner(System.in);while(true){System.out.println("-=-=-=-房间管理系统=-=-=-=");System.out.println("1-=-=-=-=-=-=-=查询");System.out.println("2-=-=-=-=-=-=-=入住");System.out.println("3-=-=-=-=-=-=-=退房");System.out.println("4-=-=-=-=-=-=-=退出系统");System.out.println("请选择。。。。");String num = sc.nextLine();switch (Integer.parseInt(num)) {case 1:hotel.search();break;case 2:System.out.println("请输入房间号：");String roomNum = sc.nextLine();System.out.println("请输入顾客姓名：");String name = sc.nextLine();hotel.checkIn(roomNum, name);break;case 3:System.out.println("请输入房间号：");roomNum = sc.nextLine();hotel.checkOut(roomNum);break;case 4:return;}}}}

 

 

 

还可以进一步的封装