Polymorphism and Method Overriding

What is printed as a result of executing the following code segment?

class Animal {
    void sound() { System.out.print("Animal "); }
}
class Dog extends Animal {
    void sound() { System.out.print("Bark "); }
}
public class Main {
    public static void main(String[] args) {
        Animal a = new Dog();
        a.sound();
    }
}