package com.day11_1;
import java.util.*;
public class Test9 {
    public static void main(String[] args) {
        Animal[] as = {
                new Dog("鼠標出問題了很煩"),
                new Cat("Tom"),
                new Dog("明天買新滑鼠，雷蛇滑鼠也不靠譜"),
                new Cat("Grafield")
        };


        Dog[] dogs = getAllDog(as);
        for(int i = 0;i<dogs.length;i++){
            System.out.println(dogs[i].getName());
        }
    }
    public static Dog[] getAllDog(Animal[] as){
        Dog[] ds = new Dog[0];
        int index = 0;
        for(int i = 0;i<as.length;i++){
            if(as[i] instanceof Dog){
                ds = Arrays.copyOf(ds,ds.length+1);
                ds[index]=(Dog)as[i];
                index++;
            }
        }
        return ds;
    }
}

class Animal{
    private String name;

    public Animal() {
    }

    public Animal(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}
class Dog extends Animal{
    public Dog() {
    }

    public Dog(String name){
        super(name);
    }
}
class Cat extends Animal{
    public Cat(){

    }
    public Cat(String name){
        super(name);
    }
}