请你编写一个包含如下内容的程序： 1.动物园Zoo类，有area面积等数据域 2.员工类Employee类，有personName姓名、age年龄等数据域；有初始化数据域的有参构造方法。 3.Employee类有2个子类：管理员子类Manager 和 饲养员Breeder子类， 3.动物Animal类，有动物名animalName等数据域；有初始化数据域的有参构造方法 4.Animal类有：老虎Tiger、鹰Eagle、大象Elephant等子类 5.动物园中有多个员工（其中一个员工是园长）和多种动物，一个饲养员饲养多种动物。要求：main方法中创建几个不同姓名的饲养员对象，创建几个不同名字的老虎、大象等动物对象，并指定某饲养员饲养哪几个动物。

以下是实现题目要求的代码：

Animal.java

public class Animal {
    private String animalName;
    
    public Animal(String animalName) {
        this.animalName = animalName;
    }
    
    public String getAnimalName() {
        return animalName;
    }
}

class Tiger extends Animal {
    public Tiger(String animalName) {
        super(animalName);
    }
}

class Eagle extends Animal {
    public Eagle(String animalName) {
        super(animalName);
    }
}

class Elephant extends Animal {
    public Elephant(String animalName) {
        super(animalName);
    }
}

Employee.java

public class Employee {
    private String personName;
    private int age;
    
    public Employee(String personName, int age) {
        this.personName = personName;
        this.age = age;
    }
    
    public String getPersonName() {
        return personName;
    }
    
    public int getAge() {
        return age;
    }
}

class Manager extends Employee {
    public Manager(String personName, int age) {
        super(personName, age);
    }
}

class Breeder extends Employee {
    private Animal[] animals;
    
    public Breeder(String personName, int age, Animal[] animals) {
        super(personName, age);
        this.animals = animals;
    }
    
    public Animal[] getAnimals() {
        return animals;
    }
}

Zoo.java

public class Zoo {
    private double area;
    private Manager manager;
    private Breeder[] breeders;
    private Animal[] animals;
    
    public Zoo(double area, Manager manager, Breeder[] breeders, Animal[] animals) {
        this.area = area;
        this.manager = manager;
        this.breeders = breeders;
        this.animals = animals;
    }
    
    public double getArea() {
        return area;
    }
    
    public Manager getManager() {
        return manager;
    }
    
    public Breeder[] getBreeders() {
        return breeders;
    }
    
    public Animal[] getAnimals() {
        return animals;
    }
    
    public static void main(String[] args) {
        Tiger tiger1 = new Tiger("Tony");
        Tiger tiger2 = new Tiger("Jack");
        Elephant elephant1 = new Elephant("Dumbo");
        Elephant elephant2 = new Elephant("Manny");
        Eagle eagle1 = new Eagle("Baldy");
        Eagle eagle2 = new Eagle("Freedom");
        
        Animal[] animals1 = {tiger1, elephant1};
        Animal[] animals2 = {tiger2, eagle1, eagle2};
        
        Breeder breeder1 = new Breeder("Alice", 30, animals1);
        Breeder breeder2 = new Breeder("Bob", 25, animals2);
        
        Animal[] animals = {tiger1, tiger2, elephant1, elephant2, eagle1, eagle2};
        Manager manager = new Manager("Charlie", 40);
        Zoo zoo = new Zoo(1000.0, manager, new Breeder[]{breeder1, breeder2}, animals);
        
        System.out.println("Zoo area: " + zoo.getArea() + " square meters");
        System.out.println("Manager: " + zoo.getManager().getPersonName());
        
        for (Breeder breeder : zoo.getBreeders()) {
            System.out.println("Breeder: " + breeder.getPersonName());
            for (Animal animal : breeder.getAnimals()) {
                System.out.println(breeder.getPersonName() + " takes care of " + animal.getAnimalName());
            }
        }
    }
}

在main方法中，我们创建了6个动物对象，2个Breeder对象和1个Manager对象，并将这些对象加入到Zoo对象中。我们还通过Breeder对象来关联某个饲养员和他所饲养的动物。最后，我们输出了Zoo对象的一些属性以及每个饲养员所饲养的动物。