怎么使用Dog2这个引用？

package imooc;

public class Initial {

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

dog Dog=new dog();

animal Animal = Dog;

if (Animal instanceof dog){

dog Dog2=(dog)Animal;

}else{

System.out.print("无法转换");

}

}

}