设计继承树2

 1 class Animalz{
 2     String name;
 3     String food;
 4     int hunger;
 5     void makeNoise(){}
 6     void eat(){}
 7     void sleep(){}
 8     void roam(){}
 9     
10 }
11  class Feline extends Animalz{
12      void roam(){
13          System.out.println("猫科动物的活动方式");
14      }
15  }
16  
17  class Lion extends Feline{
18      void makeNoise(){
19          System.out.println("狮子吼");
20      }
21      void eat(){
22          System.out.println("狮子在肉食");
23      }
24  }
25  
26  class Canine extends Animalz{
27      void roam(){
28          System.out.println("犬科动物的移动方式");
29      }
30  }
31 public class Jichenshu extends Feline{
32     void makeNoise(){
33         System.out.println("呜呜呜。。。。");
34     }
35     void eat(){
36         System.out.println("狼吃肉");
37     }
38     public static void main(String[] args){
39         Lion l = new Lion();
40         l.makeNoise();
41         l.eat();
42         
43         Jichenshu wolf = new Jichenshu();
44         wolf.makeNoise();
45         wolf.eat();
46     }
47 }