Casting轉型II

public class Test2 {

 /**
  * @param args
  */
 public static void main(String[] args) {
  Test2 test2=new Test2();
  Animal a=new Animal("name");
  Cat c =new Cat("catname", "blue");
  Dog d=new Dog("dogname", "black");
  test2.f(a);
  test2.f(c);
  test2.f(d);
 }
 
 
 public void f(Animal a){
  System.out.println("name:"+a.name);
  if(a instanceof Cat){
   Cat cat=(Cat)a;
   System.out.println("  "+cat.eyeColor+"eyes");
  }else if(a instanceof Dog){
   Dog dog=(Dog)a;
   System.out.println("  "+dog.furColor+"fur");
  }
 }
 

}