java之内部类

 1 public class RedCowForm {

 2     static String formName ;

 3     RedCow cow ; //内部类声明对象

 4    RedCowForm(){}

 5    RedCowForm(String s)

 6    {

 7      cow =new RedCow(150,112,5000);

 8      formName= s;

 9    }

10    public void showCowMess()

11    {

12        cow.speak();

13    }

14    class RedCow     //内部类声明

15    {

16        String cowName="红牛" ;

17        int height,weight,price ;

18        RedCow(int h ,int w ,int p)

19        {

20            height=h;

21            weight=w;

22            price=p;

23        }

24        void speak()

25        {

26         System.out.println("偶是"+cowName+",身高"+height+"cm 体重: "+weight+"kg,生活在"+formName);

27        }

28    }

29 }

1 public class test {

2     public static void main(String args[])

3     {

4       RedCowForm form=new RedCowForm("红牛农场");

5       form.showCowMess();

6       form.cow.speak();

7     }

8 }

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