这段java代码如何优雅的实现？

Question

for(AbstractResponse resp : responseList) {
        if (resp instanceof AResponse) {
                AResponse areponse = (AResponse)resp;
                //1
                //2
                //3
        }else if (resp instanceof BResponse) {
                BResponse breponse = (BResponse)resp;
                //1
                //2
                //3
        }else if (resp instanceof CResponse) {
                CResponse creponse = (CResponse)resp;
                //1
                //2
                //3
        }
}

不好意思，刚才写错了，修改了一下

Answer 1

这代码有问题啊，for(AResponse resp : responseList) 这个地方初期化的resp一定是AResponse类，不可能走到else if里面的后面的代码都是多余的