Java实现宠物商店管理

本文实例为大家分享了java实现宠物商店管理的具体代码，供大家参考，具体内容如下

第一种实现方式：抽象类和对象数组

public abstract class abstractpet //定义宠物模板
{
 private string name;  //名称
 private string color;  //颜色
 private int age;   //年龄

 public abstractpet(){}
 public abstractpet(string name, string color, int age){
  this.setname(name);
  this.setcolor(color);
  this.setage(age);
 }

 public string getname(){
  return this.name;
 }
 public string getcolor(){
  return this.color;
 }
 public int getage(){
  return this.age;
 }
 public void setname(string name){
  this.name = name;
 }
 public void setcolor(string color){
  this.color = color;
 }
 public void setage(int age){
  if (age > 0)
  {
   this.age = age;
  }else{
   this.age = 1;
  }
 } 

 //定义抽象方法
 public abstract void printinfo();   //自我介绍
}

public class dog extends abstractpet
{
 public dog(string name, string color, int age){
  super(name, color, age);
 }
 //实现抽象方法
 public void printinfo(){ //自我介绍
  system.out.println("狗： " + super.getname() + ",年龄 " + super.getage() + "岁，颜色：" + super.getcolor());
 }
}

public class cat extends abstractpet
{
 public cat(string name, string color, int age){
  super(name, color, age);
 }
 //实现抽象方法
 public void printinfo(){ //自我介绍
  system.out.println("狗： " + super.getname() + ",年龄 " + super.getage() + "岁，颜色：" + super.getcolor());
 }
}

public class petshop
{
 private abstractpet[] pets;
 private int foot; //定义下标

 public petshop(int len){ //宠物数量由用户确定
  if (len > 0)
  {
   this.pets = new abstractpet[len];
  }else{
   this.pets = new abstractpet[1];
  }
 }

 //添加宠物的方法
 public boolean add(abstractpet pet){
  if (this.foot < this.pets.length)
  {
   this.pets[foot] = pet;
   this.foot ++;
   return true;
  }else{
   return false;
  }
 }

 //定义查询宠物的方法[提供按照种类查询和按照姓名查询两种方法]
 public abstractpet[] search(string keyword){
  int n = 0; //定义查询到的宠物数量
  abstractpet[] searchpets = null;
  for (int i = 0; i < this.pets.length; i++)
  {
   if (this.pets[i] != null)
   {
    if (this.pets[i].getname().indexof(keyword) != -1 || this.pets[i].getcolor().indexof(keyword) != -1)
    {
     n++;
    }
   }   
  }
  searchpets = new abstractpet[n];
  n = 0;
  for (int i = 0; i < this.pets.length; i++)
  {
   if (this.pets[i] != null)
   {
    if (this.pets[i].getname().indexof(keyword) != -1 || this.pets[i].getcolor().indexof(keyword) != -1)
    {
     searchpets[n] = this.pets[i];
     n ++;
    }
   }   
  }
  return searchpets;
 }
}

public class testpetshop
{
 public static void main(string[] args){
  petshop p = new petshop(5);
  p.add(new dog("狗1", "黑色的", 3));
  p.add(new dog("狗2", "红色的", 2));
  p.add(new cat("猫1", "褐色的", 3));
  p.add(new cat("猫2", "黄色的", 3));
  p.add(new cat("猫3", "黑色的", 5));
  p.add(new dog("狗3", "棕色的", 4));
  print(p.search("黑"));
 }
 public static void print(abstractpet pets[]){
  for (int i = 0; i < pets.length; i++)
  {
   if (pets[i] != null)
   {
    pets[i].printinfo();
   }   
  }
 }
}

第二种实现方式：接口和对象数组

interface ipet
{
 string getname(); //取得宠物姓名
 string getcolor(); //取得宠物颜色
 int getage();  //取得宠物年龄
 void show();   //显示宠物信息
}

public class dog implements ipet
{
 private string name;
 private string color;
 private int age;

 public dog(string name, string color, int age){
  this.setname(name);
  this.setcolor(color);
  this.setage(age);
 }
 public string getname(){
  return this.name;
 }
 public string getcolor(){
  return this.color;
 }
 public int getage(){
  return this.age;
 }
 public void setname(string name){
  this.name = name;
 }
 public void setcolor(string color){
  this.color = color;
 }
 public void setage(int age){
  if (age < 0 || age > 50)
  {
   this.age = 1; //默认值
  }else{
   this.age = age;
  }
 }
 public void show(){
  system.out.println(this.tostring());
 }
 public string tostring(){
  return "狗：" + this.getname() + " " + this.getcolor() + " " + this.getage();
 }
}

public class cat implements ipet
{
 private string name;
 private string color;
 private int age;

 public cat(string name, string color, int age){
  this.setname(name);
  this.setcolor(color);
  this.setage(age);
 }
 public string getname(){
  return this.name;
 }
 public string getcolor(){
  return this.color;
 }
 public int getage(){
  return this.age;
 }
 public void setname(string name){
  this.name = name;
 }
 public void setcolor(string color){
  this.color = color;
 }
 public void setage(int age){
  if (age < 0 || age > 50)
  {
   this.age = 1; //默认值
  }else{
   this.age = age;
  }
 }
 public void show(){
  system.out.println(this.tostring());
 }
 public string tostring(){
  return "猫：" + this.getname() + " " + this.getcolor() + " " + this.getage();
 }
}

public class petshop
{
 private ipet[] pets;
 private int foot;

 public petshop(int len){ //宠物店的宠物数量由用户决定
  if (len > 0)
  {
   pets = new ipet[len];
  }else{
   pets = new ipet[1]; //默认最小数量为1
  }
 }
 public boolean add(ipet pet){
  if (this.foot < this.pets.length)
  {
   this.pets[this.foot] = pet;
   this.foot ++;
   return true;
  }else{
   return false;
  }
 }
 public ipet[] search(string keyword){
  //定义一个新的宠物对象数组，用来存储符合查询条件的宠物
  ipet[] resultpet = null; //不确定数量，要通过循环得到
  int count = 0; //用来存储符合查询条件的宠物数量
  for (int i = 0; i < this.pets.length; i++)
  {
   if (this.pets[i] != null)
   {
    if (this.pets[i].getname().indexof(keyword) != -1 || this.pets[i].getcolor().indexof(keyword) != -1)
    {
     count ++;
    }
   }
  }
  resultpet = new ipet[count];
  int n = 0;
  for (int i = 0; i < this.pets.length; i++)
  {
   if (this.pets[i] != null)
   {
    if (this.pets[i].getname().indexof(keyword) != -1 || this.pets[i].getcolor().indexof(keyword) != -1)
    {
     resultpet[n] = this.pets[i];
     n ++;
    }
   }
  }
  return resultpet;
 }
}

public class testpetshop
{
 public static void main(string[] args){
  //创建一个宠物商店
  petshop ps = new petshop(7); //假设可以放置5只宠物
  ps.add(new dog("旺旺", "黑色的",4));
  ps.add(new dog("旺财", "白色的",6));
  ps.add(new dog("小黑", "黄色的",3));
  ps.add(new cat("波波", "褐色的",7));
  ps.add(new cat("咪咪", "黑色的",8));
  ps.add(new cat("小云", "灰色的",2));
  ps.add(new dog("仔仔", "黄色的",5));
  print(ps.search("色"));
 }
 public static void print(ipet[] pet){
  for (int i = 0; i < pet.length; i++)
  {
   if (pet[i] != null)
   {
    pet[i].show();
   }
  }
 }
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。