Question

我一直在尝试使用以下代码创建一副牌：

public DeckOfCards()
{
    //constructor fills deck of Cards 
        String faces[] = { "Ace", "Deuce", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine", "Ten", "Eleven", "Twelve" }; 
        String suits[] = { "Hearts", "Diamonds", "Clubs", "Spades" }; 

        deck = new Cards[ NUMBER_OF_CARDS ]; 
        currentCard = 0; 
        randomNumbers = new Random(); 

        //populate deck with Card objects 
        for( int count = 0; count < deck.length; count++ )
            deck[ count ] = 
                    new Cards( faces[ count % 13 ], suits[ count / 13 ] ); 
    } //end DeckOfCard constructor

然而，有一个我无法解决的错误。它弹出这样：线程“main”java.lang.ArrayIndexOutOfBoundsException中的异常：

      for( int count = 0; count < deck.length; count++ )
        deck[ count ] = 
        new Cards( faces[ count % 13 ], suits[ count     / 13 ] );

为什么此错误会一直显示？任何帮助将不胜感激。

Answer 1

您在faces[]阵列中错过了一张卡片（十三张/一张王牌）。现在count % 13会在返回12时给你an array out of bounds error，因为你的数组只有12个元素[0-11]。向Thirteen数组添加faces或将模数值从13减少到12。

如何解决ArrayIndexOutOfBoundsException？

1 个答案: