public class Xiaotao extends Student implements Sing, Jump, Rap {
    String userName = "taoyyz小陶";
    String userPosition = "四川广元";
    int height = 170;
    int age = 24;
    Hobby[] hobbies = {new Hobby("eat"), new Hobby("drink"), new Hobby("sleep")};

    public void specialSkill() {
        while (!dead) {
            Arrays.stream(hobbies).forEach(Hobby::exec);
        }
    }
}