java - "AWT-EventQueue-0"java.lang.ArrayIndexOutOfBoundsException : 2

Question

我正在尝试用 Java 为我的一个类(class)创建井字游戏。该程序从命令行获取一个 int 并创建一个该大小的 JButton 2D 数组。它还有一个撤销和一个新游戏按钮。该程序编译并运行，当我单击新游戏按钮时没有发生异常，但是当我单击其中一个游戏空间时，它抛出此异常。

Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 2
    at GameTester.newMove(GameTester.java:28)
    at TicTacToe$GameListener.actionPerformed(TicTacToe.java:145)
    at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
    at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
    at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
    at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
    at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
    at java.awt.Component.processMouseEvent(Component.java:6505)
    at javax.swing.JComponent.processMouseEvent(JComponent.java:3321)
    at java.awt.Component.processEvent(Component.java:6270)
    at java.awt.Container.processEvent(Container.java:2229)
    at java.awt.Component.dispatchEventImpl(Component.java:4861)
    at java.awt.Container.dispatchEventImpl(Container.java:2287)
    at java.awt.Component.dispatchEvent(Component.java:4687)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
    at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
    at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
    at java.awt.Container.dispatchEventImpl(Container.java:2273)
    at java.awt.Window.dispatchEventImpl(Window.java:2719)
    at java.awt.Component.dispatchEvent(Component.java:4687)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:723)
    at java.awt.EventQueue.access$200(EventQueue.java:103)
    at java.awt.EventQueue$3.run(EventQueue.java:682)
    at java.awt.EventQueue$3.run(EventQueue.java:680)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
    at java.awt.EventQueue$4.run(EventQueue.java:696)
    at java.awt.EventQueue$4.run(EventQueue.java:694)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:693)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:244)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:163)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:147)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:139)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:97)

我的 newMove 方法只获取按钮和转弯(1 或 2)的 x 和 y 位置，并将其添加到与 GameTester 类关联的 2D int 数组中。

public void newMove(int x, int y, int turn)
    {
    board[x][y] = turn;
}

这是我的 ActionListener 中循环的一部分，其中包括调用 newMove 方法的位置。

 if (event == buttons[x][y])
{
    theBoard.moveLog(x,y);
    theBoard.newMove(x,y,toggle);
    if (toggle == 1)
    {
        buttons[x][y].setText("X");
        toggle = 2;
    }
    else
    {
        buttons[x][y].setText("O");
        toggle = 1;
    }
            ..... 
    }

非常感谢任何帮助! :)

Answer 1

根据您提供的内容，问题很可能是 buttons 和 board 不是相同维度的数组。尝试使用变量来设置两种尺寸或使用一个来设置另一个以确保它们的尺寸相同。

选项 1

int X = 3, Y = 3;

JButton[][] buttons = new JButton[X][Y];
char[][] board = new char[X][Y];

选项 2

int X = 3, Y = 3;

JButton[][] buttons = new JButton[X][Y];
char[][] board = new char[buttons.length][buttons[0].length];

如果不是这种情况，那么您需要提供 short, self-contained, compilable example您的问题，以便我们了解发生了什么。