项目代码
https://github.com/yinhai1114/Java_Learning_Code/tree/main/IDEA_chapter09/src/com/yinhai/houserent
一、项目需求说明
实现基于文本界面的房屋出租系统，能够实现对房屋信息的添加、修改和删除（用数组实现），并能够打印房屋明细表
项目界面 - 主菜单
1.新增房源
. 
2.查找房源
3.删除房源
4.修改房源
如果不希望修改某个信息 则回车即可
5.房屋列表
6.退出系统
二、项目设计
项目设计-程序框架图（分层模式 =》当软件比较复杂时，需要模式管理
三、项目实现
1.准备工具类Utility 提高开发效率
package com.yinhai.houserent.utlity;
/**
工具类的作用:
处理各种情况的用户输入，并且能够按照程序员的需求，得到用户的控制台输入。
*/
import java.util.*;
/**
*/
public class Utility {
//静态属性。。。
private static Scanner scanner = new Scanner(System.in);
/**
* 功能：读取键盘输入的一个菜单选项，值：1——5的范围
* @return 1——5
*/
public static char readMenuSelection() {
char c;
for (; ; ) {
String str = readKeyBoard(1, false);//包含一个字符的字符串
c = str.charAt(0);//将字符串转换成字符char类型
if (c != '1' && c != '2' &&
c != '3' && c != '4' && c != '5') {
System.out.print("选择错误，请重新输入：");
} else break;
}
return c;
}
/**
* 功能：读取键盘输入的一个字符
* @return 一个字符
*/
public static char readChar() {
String str = readKeyBoard(1, false);//就是一个字符
return str.charAt(0);
}
/**
* 功能：读取键盘输入的一个字符，如果直接按回车，则返回指定的默认值；否则返回输入的那个字符
* @param defaultValue 指定的默认值
* @return 默认值或输入的字符
*/
public static char readChar(char defaultValue) {
String str = readKeyBoard(1, true);//要么是空字符串，要么是一个字符
return (str.length() == 0) ? defaultValue : str.charAt(0);
}
/**
* 功能：读取键盘输入的整型，长度小于2位
* @return 整数
*/
public static int readInt() {
int n;
for (; ; ) {
String str = readKeyBoard(10, false);//一个整数，长度<=10位
try {
n = Integer.parseInt(str);//将字符串转换成整数
break;
} catch (NumberFormatException e) {
System.out.print("数字输入错误，请重新输入：");
}
}
return n;
}
/**
* 功能：读取键盘输入的 整数或默认值，如果直接回车，则返回默认值，否则返回输入的整数
* @param defaultValue 指定的默认值
* @return 整数或默认值
*/
public static int readInt(int defaultValue) {
int n;
for (; ; ) {
String str = readKeyBoard(10, true);
if (str.equals("")) {
return defaultValue;
}
//异常处理...
try {
n = Integer.parseInt(str);
break;
} catch (NumberFormatException e) {
System.out.print("数字输入错误，请重新输入：");
}
}
return n;
}
/**
* 功能：读取键盘输入的指定长度的字符串
* @param limit 限制的长度
* @return 指定长度的字符串
*/
public static String readString(int limit) {
return readKeyBoard(limit, false);
}
/**
* 功能：读取键盘输入的指定长度的字符串或默认值，如果直接回车，返回默认值，否则返回字符串
* @param limit 限制的长度
* @param defaultValue 指定的默认值
* @return 指定长度的字符串
*/
public static String readString(int limit, String defaultValue) {
String str = readKeyBoard(limit, true);
return str.equals("")? defaultValue : str;
}
/**
* 功能：读取键盘输入的确认选项，Y或N
* 将小的功能，封装到一个方法中.
* @return Y或N
*/
public static char readConfirmSelection() {
System.out.println("请输入你的选择(Y/N): 请小心选择");
char c;
for (; ; ) {//无限循环
//在这里，将接受到字符，转成了大写字母
//y => Y n=>N
String str = readKeyBoard(1, false).toUpperCase();
c = str.charAt(0);
if (c == 'Y' || c == 'N') {
break;
} else {
System.out.print("选择错误，请重新输入：");
}
}
return c;
}
/**
* 功能： 读取一个字符串
* @param limit 读取的长度
* @param blankReturn 如果为true ,表示 可以读空字符串。
* 如果为false表示 不能读空字符串。
*
* 如果输入为空，或者输入大于limit的长度，就会提示重新输入。
* @return
*/
private static String readKeyBoard(int limit, boolean blankReturn) {
//定义了字符串
String line = "";
//scanner.hasNextLine() 判断有没有下一行
while (scanner.hasNextLine()) {
line = scanner.nextLine();//读取这一行
//如果line.length=0, 即用户没有输入任何内容，直接回车
if (line.length() == 0) {
if (blankReturn) return line;//如果blankReturn=true,可以返回空串
else continue; //如果blankReturn=false,不接受空串，必须输入内容
}
//如果用户输入的内容大于了 limit，就提示重写输入
//如果用户如的内容 >0 <= limit ,我就接受
if (line.length() < 1 || line.length() > limit) {
System.out.print("输入长度（不能大于" + limit + "）错误，请重新输入：");
continue;
}
break;
}
return line;
}
}
2、完成House类 domain/model
有这几个属性 编号 房主 电话 地址 月租 状态（已出租/未出租）
package com.yinhai.houserent.domain;
public class House {
//编号 房主 电话 地址 月租 状态（已出租/未出租）
private int id;
private String name;
private String phone;
private String address;
private int rent;
private String state;
public House(int id, String name, String phone, String address, int rent, String state) {
this.id = id;
this.name = name;
this.phone = phone;
this.address = address;
this.rent = rent;
this.state = state;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public int getRent() {
return rent;
}
public void setRent(int rent) {
this.rent = rent;
}
public String getState() {
return state;
}
public void setState(String state) {
this.state = state;
}
//为了方便输出对象 实现重写toString方法
@Override
public String toString() {
//编号 房主 电话 地址 月租 状态（已出租/未出租）
return id + "\t" + name + '\t' + phone + "\t" + + address + '\t' + rent + "\t" + state;
}
}
3、完成显示主菜单和退出软件功能
实现功能三部曲【明确完成功能 - 思路分析 - 代码实现】
功能说明：用户打开软件，可以看到主菜单，可以退出软件
思路分析：在HouseView中编写一个方法mainMenu显示菜单
public class HouseView {
private boolean loop = true;
private char key = ' ';
//显示主菜单
public void mainMenu() {
do {
System.out.println("===================房屋出租系统菜单===================");
System.out.println("\t\t\t1 新 增 房 源");
System.out.println("\t\t\t2 查 找 房 源");
System.out.println("\t\t\t3 删 除 房 屋 信 息");
System.out.println("\t\t\t4 修 改 房 屋 信 息");
System.out.println("\t\t\t5 房 屋 列 表");
System.out.println("\t\t\t6 退 出");
System.out.println("请输入你的选择(1-6)");
key = Utility.readChar();
switch (key) {
case '1':
System.out.println("新 增 房 源");
break;
case '2':
System.out.println("查 找 房 源");
break;
case '3':
System.out.println("删 除 房 屋 信 息");
break;
case '4':
System.out.println("修 改 房 屋 信 息");
break;
case '5':
System.out.println("房 屋 列 表");
break;
case '6':
System.out.println("退 出");
loop = false;
break;
}
} while (loop);
}
}
4、完成显示房屋列表的功能
思路分析 需要编写HouseView 和 HouseService
HouseService 业务层
定义house[]保存house对象 编写一个方法list（）返回所有的房屋信息
//编写listHouses房屋列表
public void listHouse(){
System.out.println("===================房屋列表===================");
System.out.println("编号\t\t房主\t\t电话\t\t地址\t\t\t月租\t\t状态（已出租/未出租）");
House[] houses = houseService.list();//list返回的也是数组
for (int i = 0; i < houses.length; i++) {//但是length长度是10 会输出很多空
//所以当 == null时可以直接break
if(houses[i] == null){//如果为空 就不再显示
break;
}
System.out.println(houses[i] );
}
}
/
public class HouseService {
private House[] houses;//保存house对象
public HouseService(int size) {
houses = new House[size];//当创建HouseService对象 指定大小
//为了测试列表信息 初始化一个对象
houses[0] = new House(1,"jack","112","shanghai",2000,"未出租");
}
public House[] list(){
return houses;
}
}5、完成新增房源功能
在HouseView内 编写addHouse 接受用户输入
在service内 编写add 将新的对象加入到houses数组中
class HouseView{
//编写addHouse() 接受用户输入 调用add方法
public void addHouse(){
if(houseService.full()){//提前判断一次 避免打完信息发现满了
System.out.println("=================添加房屋失败=================");
while(true){//执行数组扩容
System.out.println("是否扩容房屋列表y/n");
key = Utility.readChar();
if(key != 'y' && key != 'n'){
System.out.println("请输入y/n");
continue;
}
if(key == 'y'){
System.out.println("输入想要增加的个数");
int size = Utility.readInt();
houseService.addArrlength(size);
}
break;
}
return;
}
System.out.println("===================添加房屋===================");
System.out.print("姓名:");
String name = Utility.readString(8);
System.out.println("电话:");
String phone = Utility.readString(13);
System.out.println("地址:");
String address = Utility.readString(13);
System.out.println("月租:");
int rent = Utility.readInt();
System.out.println("状态:");
String state = Utility.readString(3);
//创建一个新的house对象 id应该是系统分配的，用户不能输入
House newHouse = new House(0,name,phone,address,rent,state);
if(houseService.add(newHouse)){
System.out.println("添加房屋成功");
}
}
class HouseService{
public boolean add(House newHouse){
//暂时不考虑数组扩容，判断是否还可以继续添加
if(count == houses.length){
System.out.println("数组已满，不能再添加...");
return false;
}
houses[count++] = newHouse;
newHouse.setId(++idCounter);
return true;
}
public boolean full(){
if(count == houses.length){
System.out.println("数组已满，不能再添加...");
return true;
}else {
return false;
}
}
public void addArrlength(int size){//数组扩容
int num = houses.length;
House[] temp = new House[num + size];
for (int i = 0; i < houses.length; i++) {
temp[i] = houses[i];
}
houses = temp;
}
}6、完成删除房源
给了一个小的作业 加对齐数组 删了一次后面删报了空指针异常，明天想想怎么改吧，应该是数组长度不变化但是循环到null的对象getId报错，考虑缩减数组长度，明天试试
接着调用add里面的houseNum即可
注意setID应该在构建数组的时候查询是否有默认数组 idCounter = size
public boolean del(int delId){
//应当找到要删除的房屋信息的对应下标 delId和下标没关系，期间有删除会前移等等
int index = -1;
for (int i = 0; i < houses.length; i++) {
if(delId == houses[i].getId()){
index = i;
}
}
if(index == -1){
return false;
}
if(index == houses.length - 1){
houses[index] = null;
}else{
for (int i = index ; i <= houses.length - 2; i++) {
houses[i] = houses[i + 1];//煞笔了 用了index做自变量，人家都获取到了下标还懒觉自变
}
houses[houses.length - 1] = null;
}
return true;
}
class HouseService{
public boolean del(int delId){
//应当找到要删除的房屋信息的对应下标 delId和下标没关系，期间有删除会前移等等
int index = -1;
for (int i = 0; i < houses.length; i++) {
if(delId == houses[i].getId()){
index = i;
}
}
if(index == -1){
return false;
}
for (int i = index ; i < houseNum - 1; i++) {
houses[i] = houses[i + 1];//煞笔了 用了index做自变量，人家都获取到了下标还懒觉自变
}
houses[--houseNum] = null;
return true;
}
public void addArrlength(int size){
int num = houses.length;
House[] temp = new House[num + size];
for (int i = 0; i < houses.length; i++) {
temp[i] = houses[i];
}
houses = temp;
}
}
class HouseView{
public void delHouse(){
System.out.println("===================删除房屋信息===================");
System.out.println("请输入待删除房屋的编号(输入-1取消删除)");
int delId = Utility.readInt();
if(delId == -1){
return;
}
System.out.println("请确认是否删除编号为" + delId + "的房屋 y/n，请小心选择");
while(true){
char choice = Utility.readChar();
if(choice != 'y' && choice != 'n'){
System.out.println("输入有误请输入y/n");
continue;
}
if(choice == 'y'){
if(!houseService.del(delId)){
System.out.println("无法找到对应编码，请确认后重试");
return;
}
}
if(choice == 'n'){
return;
}
break;
}
}
} 
7、完成退出确认功能
直接调用Uility内的方法readConfirmSelection
写在HouseView类内
class HouseView{
public void exitView(){
System.out.println("=================退 出=================");
char c = Utility.readConfirmSelection();
if (c == 'Y'){
loop = false;
}
if (c == 'N'){
System.out.println("=============取消退出 返回主界面==============");
}
}
}8.完成根据id查找房屋信息功能
需要写View类内的方法 加 查找数组的Service功能
直接使用del方法内的查找编号代码块即可
class HouseView{
public void findHouse() {
System.out.println("===================查找房源===================");
while (true) {
System.out.println("请输入待查找房屋的编号(输入-1取消查找)");
int findId = Utility.readInt();
if (findId == -1) {
System.out.println("您已取消查找");
return;
}
if (!houseService.find(findId)) {
System.out.println("无法找到对应编码，请确认后重试");
continue;
}
break;
}
}
}
class HouseService{
public boolean find(int findId){
int index = -1;
for (int i = 0; i < houseNum; i++) {
if(findId == houses[i].getId()){
index = i;
}
}
if(index == -1){
return false;
}
System.out.println(houses[index]);
return true;
}
}
9.完成修改房屋信息
同上 查找到后输入需要更改的信息即可
更改信息应该给有原来数组的值，即输入回车给原来的值，不进行修改
class HouseView{
public void modifyingHouse(){
System.out.println("===================修改房源信息===================");
int modifyId = 0;
while (true) {
System.out.println("请输入待修改房屋的编号(输入-1取消修改)");
int findId = Utility.readInt();
modifyId = findId;
if (findId == -1) {
System.out.println("您已取消修改");
return;
}
if (houseService.find(findId)) {
break;
}
System.out.println("无法找到对应编码，请确认后重试");
return;
}
System.out.println("请确认是否修改编号为" + modifyId + "的房屋 y/n，请小心选择");
while(true){
char choice = Utility.readChar();
if(choice != 'y' && choice != 'n'){
System.out.println("输入有误请输入y/n");
continue;
}
if(choice == 'y'){
break;
}
if(choice == 'n'){
return;
}
}
System.out.println("===================输入修改房源的信息===================");
System.out.println("直接回车,不修改,保持原有");
System.out.print("姓名:");
String name = Utility.readString(8,"");
System.out.println("电话:");
String phone = Utility.readString(13,"");
System.out.println("地址:");
String address = Utility.readString(13,"");
System.out.println("月租:");
int rent = Utility.readInt(0);
System.out.println("状态:");
String state = Utility.readString(13,"");
//创建一个新的house对象 id为查找到的ID
House newHouse = new House(modifyId,name,phone,address,rent,state);
if(houseService.modify(newHouse)){
System.out.println("修改成功");
}else{
System.out.println("未进行更改，保持原有属性");
}
}
}
class HouseService{
public boolean modify(House newHouse){
int index = -1;
for (int i = 0; i < houseNum; i++) {
if(newHouse.getId() == houses[i].getId()){
index = i;
}
}
int modifyCount = -1;
if(!newHouse.getName().equals("")){
houses[index].setName(newHouse.getName());
modifyCount++;
}
if(!newHouse.getPhone().equals("")){
houses[index].setPhone(newHouse.getPhone());
modifyCount++;
}
if(!newHouse.getAddress().equals("")){
houses[index].setAddress(newHouse.getAddress());
modifyCount++;
}
if(newHouse.getRent() != 0){
houses[index].setRent(newHouse.getRent());
modifyCount++;
}
if(!newHouse.getState().equals("")){
houses[index].setState(newHouse.getState());
modifyCount++;
}
if(modifyCount == -1){
return false;
}
return true;
}
}
四、总结
至此，该程序便圆满完成，面向对象真的蛮方便的，而且很简洁，最后这个程序综合性很强，对象引用也用的很多，以后可以多看看这个程序
总代码
package com.yinhai.houserent;
import com.yinhai.houserent.domain.House;
import com.yinhai.houserent.view.HouseView;
public class HouseRentApp {
public static void main(String[] args) {
// 系统入口，创建houseview对象显示主菜单
new HouseView().mainMenu();
System.out.println("==============退出了房屋出租系统=============");
}
}
package com.yinhai.houserent.view;
import com.yinhai.houserent.domain.House;
import com.yinhai.houserent.service.HouseService;
import com.yinhai.houserent.utlity.Utility;
public class HouseView {
private boolean loop = true;
private char key = ' ';
private HouseService houseService = new HouseService(5);
//显示主菜单
public void mainMenu() {
do {
System.out.println("===================房屋出租系统菜单===================");
System.out.println("\t\t\t1 新 增 房 源");
System.out.println("\t\t\t2 查 找 房 源");
System.out.println("\t\t\t3 删 除 房 屋 信 息");
System.out.println("\t\t\t4 修 改 房 屋 信 息");
System.out.println("\t\t\t5 房 屋 列 表");
System.out.println("\t\t\t6 退 出");
System.out.println("请输入你的选择(1-6)");
key = Utility.readChar();
switch (key) {
case '1':
addHouse();
break;
case '2':
findHouse();
break;
case '3':
delHouse();
break;
case '4':
modifyingHouse();
break;
case '5':
listHouse();
break;
case '6':
exitView();
break;
}
} while (loop);
}
//编写listHouses房屋列表
public void listHouse(){
System.out.println("===================房屋列表===================");
System.out.println("编号\t\t房主\t\t电话\t\t地址\t\t\t月租\t\t状态（已出租/未出租）");
House[] houses = houseService.list();//list返回的也是数组
for (int i = 0; i < houses.length; i++) {//但是length长度是10 会输出很多空
//所以当 == null时可以直接break
if(houses[i] == null){//如果为空 就不再显示
break;
}
System.out.println(houses[i] );
}
}
//编写addHouse() 接受用户输入 调用add方法
public void addHouse(){
System.out.println("===================新增房源===================");
if(houseService.full()){//提前判断一次 避免打完信息发现满了
System.out.println("=================添加房屋失败=================");
while(true){//执行数组扩容
System.out.println("是否扩容房屋列表y/n");
key = Utility.readChar();
if(key != 'y' && key != 'n'){
System.out.println("请输入y/n");
continue;
}
if(key == 'y'){
System.out.println("输入想要增加的个数");
int size = Utility.readInt();
houseService.addArrlength(size);
}
break;
}
return;
}
System.out.println("===================添加房屋===================");
System.out.print("姓名:");
String name = Utility.readString(8);
System.out.println("电话:");
String phone = Utility.readString(13);
System.out.println("地址:");
String address = Utility.readString(13);
System.out.println("月租:");
int rent = Utility.readInt();
System.out.println("状态:");
String state = Utility.readString(3);
//创建一个新的house对象 id应该是系统分配的，用户不能输入
House newHouse = new House(0,name,phone,address,rent,state);
if(houseService.add(newHouse)){
System.out.println("添加房屋成功");
}
}
public void delHouse(){
System.out.println("===================删除房屋信息===================");
System.out.println("请输入待删除房屋的编号(输入-1取消删除)");
int delId = Utility.readInt();
if(delId == -1){
System.out.println("您已取消删除");
return;
}
System.out.println("请确认是否删除编号为" + delId + "的房屋 y/n，请小心选择");
while(true){
char choice = Utility.readChar();
if(choice != 'y' && choice != 'n'){
System.out.println("输入有误请输入y/n");
continue;
}
if(choice == 'y'){
if(!houseService.del(delId)){
System.out.println("无法找到对应编码，请确认后重试");
return;
}
}
if(choice == 'n'){
return;
}
break;
}
}
public void exitView(){
System.out.println("=================退 出=================");
char c = Utility.readConfirmSelection();
if (c == 'Y'){
loop = false;
}
if (c == 'N'){
System.out.println("=============取消退出 返回主界面==============");
}
}
public void findHouse() {
System.out.println("===================查找房源===================");
while (true) {
System.out.println("请输入待查找房屋的编号(输入-1取消查找)");
int findId = Utility.readInt();
if (findId == -1) {
System.out.println("您已取消查找");
return;
}
if (!houseService.find(findId)) {
break;
}
System.out.println("无法找到对应编码，请确认后重试");
}
}
public void modifyingHouse(){
System.out.println("===================修改房源信息===================");
int modifyId = 0;
while (true) {
System.out.println("请输入待修改房屋的编号(输入-1取消修改)");
int findId = Utility.readInt();
modifyId = findId;
if (findId == -1) {
System.out.println("您已取消修改");
return;
}
if (houseService.find(findId)) {
break;
}
System.out.println("无法找到对应编码，请确认后重试");
return;
}
System.out.println("请确认是否修改编号为" + modifyId + "的房屋 y/n，请小心选择");
while(true){
char choice = Utility.readChar();
if(choice != 'y' && choice != 'n'){
System.out.println("输入有误请输入y/n");
continue;
}
if(choice == 'y'){
break;
}
if(choice == 'n'){
return;
}
}
System.out.println("===================输入修改房源的信息===================");
System.out.println("直接回车,不修改,保持原有");
System.out.print("姓名:");
String name = Utility.readString(8,"");
System.out.println("电话:");
String phone = Utility.readString(13,"");
System.out.println("地址:");
String address = Utility.readString(13,"");
System.out.println("月租:");
int rent = Utility.readInt(0);
System.out.println("状态:");
String state = Utility.readString(13,"");
//创建一个新的house对象 id为查找到的ID
House newHouse = new House(modifyId,name,phone,address,rent,state);
if(houseService.modify(newHouse)){
System.out.println("修改成功");
}else{
System.out.println("未进行更改，保持原有属性");
}
}
}
package com.yinhai.houserent.service;
import com.yinhai.houserent.domain.House;
public class HouseService {
private House[] houses;//保存house对象
private int houseNum = 1;
private int idCounter = 1;
public HouseService(int size) {
houses = new House[size];//当创建HouseService对象 指定大小
houseNum = size;
idCounter = size;
//为了测试列表信息 初始化一个对象
houses[0] = new House(1,"jack","112","shanghai",2000,"未出租");
houses[1] = new House(2,"jack1","112","shanghai",2000,"未出租");
houses[2] = new House(3,"jack2","112","shanghai",2000,"未出租");
houses[3] = new House(4,"jack3","112","shanghai",2000,"未出租");
houses[4] = new House(5,"jack4","112","shanghai",2000,"未出租");
}
public House[] list(){
return houses;
}
public boolean add(House newHouse){
//暂时不考虑数组扩容，判断是否还可以继续添加
if(houseNum == houses.length){
System.out.println("数组已满，不能再添加...");
return false;
}
houses[houseNum++] = newHouse;
newHouse.setId(++idCounter);
return true;
}
public boolean full(){
if(houseNum == houses.length){
System.out.println("数组已满，不能再添加...");
return true;
}else {
return false;
}
}
public boolean del(int delId){
//应当找到要删除的房屋信息的对应下标 delId和下标没关系，期间有删除会前移等等
int index = -1;
for (int i = 0; i < houseNum; i++) {
if(delId == houses[i].getId()){
index = i;
}
}
if(index == -1){
return false;
}
for (int i = index ; i < houseNum - 1; i++) {
houses[i] = houses[i + 1];//煞笔了 用了index做自变量，人家都获取到了下标还懒觉自变
}
houses[--houseNum] = null;
return true;
}
public void addArrlength(int size){
int num = houses.length;
House[] temp = new House[num + size];
for (int i = 0; i < houses.length; i++) {
temp[i] = houses[i];
}
houses = temp;
}
public boolean find(int findId){
int index = -1;
for (int i = 0; i < houseNum; i++) {
if(findId == houses[i].getId()){
index = i;
}
}
if(index == -1){
return false;
}
System.out.println(houses[index]);
return true;
}
public boolean modify(House newHouse){
int index = -1;
for (int i = 0; i < houseNum; i++) {
if(newHouse.getId() == houses[i].getId()){
index = i;
}
}
int modifyCount = -1;
if(!newHouse.getName().equals("")){
houses[index].setName(newHouse.getName());
modifyCount++;
}
if(!newHouse.getPhone().equals("")){
houses[index].setPhone(newHouse.getPhone());
modifyCount++;
}
if(!newHouse.getAddress().equals("")){
houses[index].setAddress(newHouse.getAddress());
modifyCount++;
}
if(newHouse.getRent() != 0){
houses[index].setRent(newHouse.getRent());
modifyCount++;
}
if(!newHouse.getState().equals("")){
houses[index].setState(newHouse.getState());
modifyCount++;
}
if(modifyCount == -1){
return false;
}
return true;
}
}
package com.yinhai.houserent.domain;
public class House {
//编号 房主 电话 地址 月租 状态（已出租/未出租）
private int id;
private String name;
private String phone;
private String address;
private int rent;
private String state;
public House(int id, String name, String phone, String address, int rent, String state) {
this.id = id;
this.name = name;
this.phone = phone;
this.address = address;
this.rent = rent;
this.state = state;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public int getRent() {
return rent;
}
public void setRent(int rent) {
this.rent = rent;
}
public String getState() {
return state;
}
public void setState(String state) {
this.state = state;
}
//为了方便输出对象 实现重写toString方法
@Override
public String toString() {
//编号 房主 电话 地址 月租 状态（已出租/未出租）
return id + "\t\t" + name + "\t" + phone + "\t\t" + address + "\t" + rent + "\t" + state;
}
}
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