java7

interface Pet{
public String getName();
public String getColor();
public int getAge();
}
class Cat implements Pet{
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 name;
}
public void setName(String name) {
this.name = name;
}
public String getColor() {
return color;
}
public void setColor(String color) {
this.color = color;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
};
class Dog implements Pet{
private String name;
private String color;
private int age;
public Dog(String name,String color,int age){
this.name = name;
this.color = color;
this.age = age;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getColor() {
return color;
}
public void setColor(String color) {
this.color = color;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
};
class PetShop{
private Pet[] pets;
private int foot;
public PetShop(int len){
if(len>0){
this.pets = new Pet[len];
}else{
this.pets = new Pet[1];
}
}
public boolean add(Pet pet){
if(this.foot<this.pets.length){
this.pets[this.foot]=pet;
this.foot++;
return true;
}else{
return false;
}
}
public Pet[] search(String keyWord){
Pet p[] = null;
int count=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){
count++;
}
}
}
p = new Pet[count];
int f=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){
p[f]=this.pets[i];
f++;
}
}
}
return p;
}
};
public class PetShopDemo {

/**
 * @param args
 */
public static void main(String[] args) {
// TODO Auto-generated method stub
        PetShop ps = new PetShop(5);
        ps.add(new Cat("小猫","白色的",3));
        ps.add(new Cat("黑猫","黑色的",2));
        ps.add(new Cat("小花猫","花色的",4));
        ps.add(new Dog("拉布拉多","白色的",3));
        ps.add(new Dog("金毛","金色的",3));
        ps.add(new Dog("藏獒","黑色的",3));
        print(ps.search("黑"));
}
public static void print(Pet p[]){
for(int i=0;i<p.length;i++){
if(p[i]!=null){
System.out.println(p[i].getName()+","+p[i].getColor()+","+p[i].getAge());
}
 }
   }
}