井字游戏程序未确定获胜者

Question

我的井字游戏程序有这个小问题。我有一个嵌套计数器检查 X 件的垂直和水平胜利（我还没有为 O 做过）。出于某种原因，它永远不会结束，让我可以放置越来越多的作品。

对于某些上下文，下面是一些代码片段。

public static void game (String winner, Board pointer)
{ 
    boolean win = false;
    int turnCount = 1;
    winner = "Tie";
    while (win == false || turnCount < 9)
    {
        int row = Integer.parseInt(JOptionPane.showInputDialog(pointer.getName1() + ", it is your turn. " + "n" + "What row would you like your 'x' to be in?"));
        int col = Integer.parseInt(JOptionPane.showInputDialog("What column would you like it to be in?"));
        pointer.play[row] [col] = pointer.x;
        SpotCheck1(winner, pointer, row, col);
        System.out.println(BoardStat(pointer));
        winCheck(win, pointer, winner);
        int row2 = Integer.parseInt(JOptionPane.showInputDialog(pointer.getName2() + ", it is your turn. " + "n" + "What row would you like your 'o' to be in?")); 
        int col2 = Integer.parseInt(JOptionPane.showInputDialog("What column would you like it to be in?"));
        SpotCheck2(winner, pointer, row2, col2);
        pointer.play[row2] [col2] = pointer.o;
        System.out.println(BoardStat(pointer));
        winCheck(win, pointer, winner);
        turnCount++;
    }
    //return winner;
}
public static void winCheck (boolean win, Board pointer, String winner)
{
    for (int counter = 1; counter <= 3; counter++)
    {
        if ( pointer.play [counter] [1].compareTo(pointer.x) > 0 && pointer.play [counter] [2].compareTo(pointer.x) > 0 && pointer.play [counter] [3].compareTo(pointer.x) > 0)
        {
            win = true;
            winner = pointer.getName1();
            win(winner, pointer);
        }          
        else if (pointer.play [1] [counter].compareTo(pointer.x) > 0 && pointer.play [2] [counter].compareTo(pointer.x) > 0 && pointer.play [3] [counter].compareTo(pointer.x) > 0)
        {
            win = true;
            winner = pointer.getName1();
            win(winner, pointer);
        }
    }
    //return win;
}

抽查 1 和 2 是检查玩家是否已经放置棋子的方法。我认为，问题出在WinCheck方法上。如果有人能帮助我，那就太好了！第一篇文章，如果我做错了什么，请道歉。

Answer 1

您正在修改方法winCheck中的参数win，并且您期望这会更改方法 game 中的局部变量win。但事实并非如此 - Java 按值传递方法参数，因此 winCheck 中的win是一个副本，任何更改都不会反映回来。可以将方法的返回类型设为winCheck boolean。

public static boolean winCheck (boolean win, Board pointer, String winner)
{
    // Other code is unchanged
    return win;
}

在game方法中，您将方法的任何调用winCheck更改为：

win = winCheck(...);