内部类

package st;
//内部类
class RedCowForm
{
    static String formName;
    RedCow cow;
    RedCowForm(){}
    RedCowForm(String s){
     cow = new RedCow(150,112,5000);
     formName=s;    
    }
    public void ShowCowMess()
    {
        cow.speak();
    }
    class RedCow  //内部类的声明
    {
        String cowName ="红牛";
        int height , weight , price;
        RedCow(int h ,int w, int p)
        {
           height=h;
           weight=w;
           price=p;
        }
   void  speak()
   {
     System.out.println("偶是"+cowName+",身高："+height+"cm 体重: "+weight+"kg,生活在"+formName);
   }
    }
}
public class example_1
{
    public static void main(String args[])
    {
        RedCowForm form = new  RedCowForm("红牛农场");
        form.ShowCowMess();
        form.cow.speak();
    }
}