如果我对您的理解正确，则可能应该声明：
public class ZoneList<T extends Card> { protected List<T> cardBox;}public class PokerHand extends ZoneList<PokerCard> { public PokerHand() { cardBox = new ArrayList<PokerCard>(); }}
如果我对您的理解正确，则可能应该声明：
public class ZoneList<T extends Card> { protected List<T> cardBox;}public class PokerHand extends ZoneList<PokerCard> { public PokerHand() { cardBox = new ArrayList<PokerCard>(); }}名师互学网 版权所有 (c)2021-2022 ICP备案号：晋ICP备2021003244-6号
