Java实现房屋出租系统详解

浅沫记忆

这篇文章主要介绍了实现Java房屋出租系统的实现过程，文章条理清晰，在实现过程中加深了对相关概念的理解，具有一定的参考价值，感兴趣的小伙伴们可以参考一下
目录

• houseView
  
• house_Sevice
  
• House
  
• App
  
• 总结
  

houseView

package house.view;
import house.model.House;
import house.sevice.house_Sevice;
import house.tool.Utility;
import java.util.Scanner;
/**
 * 1 显示界面
 * 2 接收用户的输入
 * 3 调用houseService完成对房屋信息的各种输人
 */
public class houseView {
  private boolean loop=true;
  private char key=' ';
  //编写addhouse()，接收输入，创建addhouse对象，调用add方法
  public void addhouse(){
    System.out.println("---------添加房屋-------");
    System.out.print("姓名:");
    String name=Utility.readString(6);
    System.out.print("电话:");
    int phone=Utility.readInt(12);
    System.out.print("地址:");
    String address=Utility.readString(14);
    System.out.print("月租:");
    int rent=Utility.readInt();
    System.out.print("状态:");
    String state=Utility.readString(3);
    //注意id是系统分配的
    House newhouse=new House(0,name,phone,address,rent,state);
    if(house_sevice.add(newhouse)){
      System.out.println("添加房屋成功");
    }else {
      System.out.println("添加房屋失败");
    }
  }
  //查找房屋
  public void find(){
    System.out.println("---------查找房屋-------");
    System.out.print("请输入要查找的房屋编号:");
    int f=Utility.readInt();
    if(house_sevice.Find(f)==null){
      System.out.println("没有找到该房屋的信息");
    }else {
      System.out.println("编号  房主  \t电话  \t地址  \t月租  \t状态(出租/未出租)\n"+house_sevice.Find(f));
    }
  }
  //编写delhosue方法，接收输入的id，调用service的del方法
  public void delhouse(){
    System.out.println("---------删除房屋-------");
    System.out.print("请输入要删除的房屋编号(-1退出):");
    int delid=Utility.readInt();
    if(delid==-1){
      System.out.println("---------退出删除-------");
      return;
    }
    char c=Utility.readConfirmSelection();//调用该方法，一直循环直到用户输入y或n
    if(c=='Y'){
      if(house_sevice.del(delid)){
        System.out.println("---------删除成功-------");
      }else {
        System.out.println("---------删除失败-------");
      }
    }else {
      System.out.println("---------退出删除-------");
      return;
    }
  }
  //修改房屋信息
  public void update(){
    System.out.println("---------修改房屋信息-------");
    System.out.print("请输入要修改的房屋编号(-1退出):");
    int up=Utility.readInt();
    if(up==-1){
      System.out.println("---------退出修改-------");
      return;
    }
    house_sevice.updata(up);
    System.out.println("---------修改成功-------");
  }
  //显示房屋列表
  private house_Sevice house_sevice=new house_Sevice(10);//设置数组大小为10
  public  void listHouse(){
    System.out.println("---------房屋出租列表-------");
    System.out.println("编号  房主  \t电话  \t地址  \t月租  \t状态(出租/未出租)");
    House[] houses=house_sevice.list();//得到所有房屋的信息
    for (int i = 0; i < houses.length; i++) {
      if(houses[i]==null){
        break;
      }
      System.out.println(houses[i]);
    }
  }
  //主菜单
  public void main_menu(){
    do{
      System.out.println("---------房屋出租系统-------");
      System.out.println("\t\t1 新 增 房 源");
      System.out.println("\t\t2 查 找 房 屋");
      System.out.println("\t\t3 删 除 房 屋");
      System.out.println("\t\t4 修 改 房 屋 信 息");
      System.out.println("\t\t5 房 屋 列 表");
      System.out.println("\t\t6 退 出");
      System.out.print("请输入你的选择:");
      key= Utility.readChar();
      switch (key){
        case '1':
          addhouse();
          break;
        case '2':
          find();
          break;
        case '3':
          delhouse();
          break;
        case '4':
          update();
          break;
        case '5':
          listHouse();
          break;
        case '6':
          char n=Utility.readConfirmSelection();
          if(n=='Y'){
            loop=false;
          }
          break;
        default:
          System.out.println("输入错误!");
      }
    }while (loop);
  }
}

house_Sevice

package house.sevice;
import house.model.House;
import house.tool.Utility;
/**
 * house_Sevice.java<=> 类 [业务层]
 * //定义house[],保存house对象
 * 1 响应houseView的调用
 * 2 完成对房屋信息的各种操作(增删改查)
 */
public class house_Sevice {
  private House[] houses;//保存house对象
  private int nums=3;//记录数组内的房屋个数
  private int count=3;//id
  //初始化房屋列表
  public house_Sevice(int size){//传入数组大小
    houses=new House[size];
    houses[0]=new House(1,"Morty",1020,"纽约",111,"未出租");
    houses[1]=new House(2,"莱月昴",1021,"东京",222,"未出租");
    houses[2]=new House(3,"李星云",1022,"洛阳",333,"未出租");
  }
  public House[] list(){
    return houses;//因为重写了tostring
  }
  //添加房屋信息
  public boolean add(House newhouse){
    if(nums==houses.length){
      return false;
    }else {
      houses[nums++]=newhouse;
      newhouse.setId(++count);//id自增长机制，更新newhouse的id
      return true;
    }
  }
  //删除房屋
  public boolean del(int Id){
    //找到要删除房屋信息元素对应的下标
    int index=-1;
    for (int i = 0; i < nums; i++) {
      if(Id==houses[i].getId()){
        index=i;
      }
    }
    if(index==-1){
      return false;
    }
    for (int i = index; i < houses.length-1; i++) {
      houses[i]=houses[i+1];//将该位置之后的元素前移覆盖
    }
    houses[--nums]=null;//将数组长度减一并将最后一个元素置空
    return true;
  }
  //查找房屋
  public House Find(int id){
    //找到要查找房屋信息元素对应的下标
    for (int i = 0; i < nums; i++) {
      if(id==houses[i].getId()){
        return houses[i];
      }
    }
    return null;
  }
  //修改房屋信息
  public void updata(int up){
    House house=Find(up);
    if(house==null){
      System.out.println("该房屋不存在");
    }else {
      System.out.print("姓名:("+house.getName()+"):");
      String name= Utility.readString(8,"");//用户如果直接回车代表不修改，默认值为""
      if(!name.equals("")){
        house.setName(name);//将用户输入的name覆盖原来的name
      }
      System.out.print("手机号:("+house.getPhone()+"):");
      int phone=Utility.readInt(0);//用户如果直接回车代表不修改,默认值为0
      if(!(phone==0)){
        house.setPhone(phone);//将用户输入的name覆盖原来的name
      }
      System.out.print("地址:("+house.getAddress()+"):");
      String address=Utility.readString(8,"");
      if(!address.equals("")){
        house.setAddress(address);
      }
      System.out.print("月租:("+house.getRent()+"):");
      int rent=Utility.readInt(0);
      if(!(rent==0)){
        house.setRent(rent);
      }
      System.out.print("状态:("+house.getState()+"):");
      String state=Utility.readString(8,"");
      if(!state.equals("")){
        house.setState(state);//
      }
    }
  }
}

House

package house.model;
/**
 * house类的对象表示一个房屋的信息
 */
public class House {
  //编号  房主  电话  地址  月租  状态(出租/未出租)
  private int id;
  private String name;
  private int phone;
  private String address;
  private int rent;
  private String state;
  public House(int id, String name, int 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 int getPhone() {
    return phone;
  }
  public void setPhone(int 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;
  }
  @Override
  public String toString() {
    return  id
        +"\t" +name
        +"\t" +phone
        +"\t" +address
        +"\t\t"+rent
        +"\t\t"+state;
  }
}

App

package house.view;
import house.model.House;
public class App {
  public static void main(String[] args) {
    //创建View对象，并显示主菜单，是整个程序的入口
    new houseView().main_menu();//创建一个虚拟对象调用显示主菜单的方法
    System.out.println("程序已退出");
  }
}

总结
本篇文章就到这里了，希望能够给你带来帮助，也希望您能够多多关注CodeAE代码之家的更多内容！
原文链接：https://blog.csdn.net/m0_55997161/article/details/120588003