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();
}
}
}
}
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