定义一个animal类要求如下：包括成员变量：名称name，体重weight，颜色color；包括动态方法run，输出run fastly，动态方法eat，输出I love bone；定义重载方法run（String name），输出谁跑得快；在main方法里新建一个对象a，用new调用构造方法，然后打印输出a的成员变量，再调用run和eat方法。

以下是Animal类的定义和main方法的实现：

public class Animal {
    private String name;
    private double weight;
    private String color;

    public Animal(String name, double weight, String color) {
        this.name = name;
        this.weight = weight;
        this.color = color;
    }

    public void run() {
        System.out.println("Run fastly");
    }

    public void eat() {
        System.out.println("I love bone");
    }

    public void run(String name) {
        System.out.println(name + " runs fastly");
    }

    public String getName() {
        return name;
    }

    public double getWeight() {
        return weight;
    }

    public String getColor() {
        return color;
    }
}

public class Main {
    public static void main(String[] args) {
        Animal a = new Animal("Dog", 15.5, "Brown");
        System.out.println("Name: " + a.getName());
        System.out.println("Weight: " + a.getWeight());
        System.out.println("Color: " + a.getColor());

        a.run();
        a.eat();

        a.run("Rabbit");
    }
}

输出结果为：

Name: Dog
Weight: 15.5
Color: Brown
Run fastly
I love bone
Rabbit runs fastly