class Animal2
{
    void eat()
    {
        System.out.println("animal : eat");
    }
}

class Dog extends Animal2
{
    void eat()
    {
        System.out.println("dog : eat");
    }

    void eatTest()
    {
        this.eat();
        super.eat();
    }
}

public class Test
{
    public static void main(String[] args)
    {
        Animal2 a = new Animal2();
        a.eat();
        
        Dog d = new Dog();
        d.eatTest();
    }
}