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[英]i want to make my actionlistener on a separete class but it doesnt seem to work
[英]I want to use an object in my ActionListener Class
我正在嘗試實現我的打牌游戲中的紙牌游戲代碼。 我在ActionListener類中使用Deck時遇到問題。 Deck是Deck類的一個對象,具有ArrayList和一些從Deck中選擇一張卡片的方法作為變量/實例(我不知道正確的術語)。actionlistener類的代碼如下:
class Play implements ActionListener {
@Override
public void actionPerformed(ActionEvent event) {
Card a1, a2, b1, b2;
a1 = Deck.pickCard(Deck.Deck);
String Player2="Player2";
String Player1="Player1";
int score1=0;
int score2=0;
System.out.println(Player1 + " drew a " + a1.getName(a1) + " of " + a1.getType(a1));
a2 = Deck.pickCard(Deck.Deck);
System.out.println(Player1 + " drew a " + a2.getName(a2) + " of " + a2.getType(a2));
b1 = Deck.pickCard(Deck.Deck);
System.out.println(Player2 + " drew a " + b1.getName(b1) + " of " + b1.getType(b1));
b2 =Deck.pickCard(Deck.Deck);
System.out.println(Player2 + " drew a " + b2.getName(b2) + " of " + b2.getType(b2));
if (a1.getValue(a1) + a2.getValue(a2) > b1.getValue(b1) + b2.getValue(b2)) {
score1 = score1 + 1;
System.out.println(Player1 + " win and has " + score1 + " points");
}
if (a1.getValue(a1) + a2.getValue(a2) < b1.getValue(b1) + b2.getValue(b2)) {
score2 = score2 + 1;
System.out.println(Player2 + " win and has " + score2 + " points");
}
}
}
如果我在Play
類中設置了Deck
類的構造函數,則代碼將正常運行,但是每次Deck重新創建且拾取的卡不會從Deck中移除。 當我輸入這個問題時,我記得分數也在刷新。我嘗試將這段代碼放入方法中並嘗試在Play類中調用該方法,但這似乎也不起作用,我的文字帶有下划線用紅色表示a non static method cannot be referenced from a static context
。 我一般都不是編程新手,而關於繼承和變量的這些問題現在看來太尷尬和奇怪。 我想問一下是否有可能解決這種問題,因為我已經為練習的前一部分做了很多工作。在此先感謝您!
我不確定您的確切情況是什么,但也許您需要讓Play的構造函數接受Deck作為參數:
class Play implements ActionListener {
Deck deck;
public Play(Deck deck) {
this.deck = deck;
}
@Override
public void actionPerformed(ActionEvent ae) {
...
}
}
現在您可以執行addActionListener(new Play(deck));
並為Play提供對您的Deck的參考。
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