How does the following Java code behave when compiled and executed?

public class Animal {
    public void displayInfo() {
        System.out.println("I am an animal.");
    }
    public static void main(String[] args) {
        Animal myAnimal = new Animal() {
            public void displayInfo() {
                System.out.println("I am a mysterious animal.");
            }
        };
        myAnimal.displayInfo();
    }
}