Java实现房屋出租系统详解 Java实现房屋出租系统详解

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nif(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10publicvoid 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idreturn 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0if(!(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); //}}}}

【Java实现房屋出租系统详解】
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; }@Overridepublic String toString() {returnid+"\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"); }}