如何用Java实现房屋出租系统

本篇内容介绍了"如何用Java实现房屋出租系统"的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让小编带领大家学习一下如何处理这些情况吧！希望大家仔细阅读，能够学有所成！

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");    }}

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