Question

我正在尝试获取有关阵列列表中卡片的具体信息。

arraylist中的每个对象都有两个特征：

value // such as ace, 10, jack, 4
suit // diamonds, clubs etc

我有一个arraylist，它持有洗牌的牌组，打印出来（方法正常，这只是为了显示对象）：

as qd ts 4s ad 5d jd 2s 3h ac 2c 5c 9h 4d 6c 9c 8d 7h 3d 7d 8s qs jc ks jh 3s 7s td 6d 9d kc 8h 4c 4h 8c 2h qc 6s qh
// etc etc, arraylist holds 52 objects (the cards)

当从洗牌包（上面的洗牌数组）发牌时，它会从洗牌阵列中删除牌并将其移动到牌组阵列，其数量等于内部对象的总数。

上下文的交易方法

private void dealCard(){
    //TODO
    int totalLeftOver = 0; // used to count the cards left in the shuffled-but-not-dealt pack
    Card topCard = shuffledPack.get(0);
    //String dealtCard = topCard.getValue() + topCard.getSuit();
    shuffledPack.remove(0);
    theFlop.add(topCard);
    System.out.print("Cards on the flop: ");
    for(Card dealt : theFlop){
        String definitelyDealt = dealt.getValue() + dealt.getSuit() + " ";
        System.out.print(definitelyDealt);
    }
    System.out.println("\n");
    for(Card card : shuffledPack){ // for loop to count how cards haven't been dealt
        totalLeftOver++;
    }
    System.out.println("Total number of cards not dealt: " + totalLeftOver); // show how many cards haven't been dealt to the player
}

我现在正在尝试获取触发器阵列列表中特定卡的值和值，具体取决于位置。为简单起见，我想说我想得到最后一张卡的信息。这是我目前拥有的，它可以检测翻牌的大小：

private void makeMovePreviousPile(){
    int lastDealtCardPos = theFlop.size(); //allows us to see how many cards have been dealt, are you even trying to challenge us Chris?
    int previouslyDealtCardPos = lastDealtCardPos - 1;

    if(lastDealtCardPos != 0){ // check that the deck has been shuffled
        String lastCardDealt = lastDealtCardPos.getValue() + lastDealtCardPos.getSuit(); // this doesn't work, its where I'm stuck.
    }
    else { // if it hasn't been shuffled we shun the user.
        System.out.println("Are you sure you shuffled the deck before dealing? Stop trying to cheat.");
        System.out.println("Next time we play Monopoly you won't be the banker. \n");
    }
    //System.out.print(totalDealtCards + " "); // should be equal to the amount of cards we've dealt, if not we've got a problem Huston.
    //System.out.print("Total cards on the flop: " + lastDealtCardPos + " "); // checking to see that its working as intended
    //System.out.print("Previous card dealt: " + previouslyDealtCardPos);
}

现在我们知道了翻牌的大小（已经发出了多少张牌）以及阵列中最后一张牌的位置（在这个例子中是lastDealtCardPos），然后我们如何获取该牌的信息（比如这个位置的“心灵王牌”啊）

以前，当循环打包并在每张卡添加到阵列时打印出来时，我已经使用了这两种方法（可行）：

    public  String getSuit() {
    return suit;
}

    public  String getValue() {
    return value;
}

Answer 1

好吧，假设翻牌确实是一个ArrayList而不是一个数组（你的问题标题和正文矛盾），你总是可以做到

theFlop.get(lastDealtCardPos).getSuit();
theFlop.get(lastDealtCardPos).getValue();

虽然根据您的代码，您应该记住size()没有编入索引。因此，您应将lastDealtCardPos设置为size()-1

从arraylist中的特定位置获取对象信息？

1 个答案: