我不知道是什么问题。我一直在打印moveval，它打印0，并按水平顺序运行。
我一直在用google和youtube编辑一个修改代码的程序，但是，没有什么好结果

static class Move {
    int row, col;
}
private boolean equals(JButton a, JButton b, JButton c){
    return a.getText().equals(b.getText()) && b.getText().equals(c.getText()) && !a.getText().equals("");
}
private boolean isGameOver() {
    for (int i = 0; i < 3; i++) {
        if (equals(board[i][0], board[i][1], board[i][2])) {
            return true;
        }
    }
    for (int i = 0; i < 3; i++) {
        if (equals(board[0][i], board[1][i], board[2][i])) {
            return true;
        }
    }
    if (equals(board[0][0], board[1][1], board[2][2])) {
        return true;
    }
    else if (equals(board[2][0], board[1][1], board[0][2])) {
        return true;
    }
    int openSpots = 0;
    for (int i = 0; i < 3; i++) {
        for (int j = 0; j < 3; j++) {
            if (board[i][j].getText().equals("")) {
                openSpots++;
            }
        }
    }
    return openSpots == 0;
}
private int evaluate(JButton[][] b) {
    for (int row = 0; row < 3; row++)
    {
        if (b[row][0] == b[row][1] &&
                b[row][1] == b[row][2])
        {
            if (b[row][0].getText().equals(ai))
                return 20;
            else if (b[row][0].getText().equals(human))
                return -10;
        }
    }
    for (int col = 0; col < 3; col++)
    {
        if (b[0][col] == b[1][col] &&
                b[1][col] == b[2][col])
        {
            if (b[0][col].getText().equals(ai))
                return 20;

            else if (b[0][col].getText().equals(human))
                return -10;
        }
    }
    if (b[0][0] == b[1][1] && b[1][1] == b[2][2])
    {
        if (b[0][0].getText().equals(ai))
            return 20;
        else if (b[0][0].getText().equals(human))
            return -10;
    }
    if (b[0][2] == b[1][1] && b[1][1] == b[2][0])
    {
        if (b[0][2].getText().equals(ai))
            return 20;
        else if (b[0][2].getText().equals(human))
            return -10;
    }
    return 0;
}
private int minimax(JButton[][] position, int depth, boolean isMax) {
    if (isGameOver() || depth == 0){
        return evaluate(position);
    }

    else if (isMax)
    {
        int best = -1000000000;
        for (int i = 0; i < 3; i++)
        {
            for (int j = 0; j < 3; j++)
            {
                if (position[i][j].getText().equals(""))
                {
                    position[i][j].setText(ai);
                    JButton[][] position1 = position;
                    best = Math.max(best, minimax(position1, depth - 1, false));
                    System.out.println(best);
                    position[i][j].setText("");
                }
            }
        }
        return best;
    }
    else
    {
        int best1 = 1000000000;
        for (int i = 0; i < 3; i++)
        {
            for (int j = 0; j < 3; j++)
            {
                if (position[i][j].getText().equals(""))
                {
                    position[i][j].setText(human);
                    JButton[][] position1 = position;
                    best1 = Math.min(best1, minimax(position1, depth - 1, true));
                    position[i][j].setText("");
                }
            }
        }
        return best1;
    }
}
private void BestMove(JButton[][] board) {
    int bestVal = -1000000000;
    Move bestMove = new Move();
    bestMove.row = -1;
    bestMove.col = -1;
    for (int i = 0; i < 3; i++)
    {
        for (int j = 0; j < 3; j++)
        {
            if (board[i][j].getText().equals(""))
            {
                board[i][j].setText(ai);
                int moveVal = minimax(board, 3, false);
                board[i][j].setText("");

                if (moveVal > bestVal)
                {
                    bestVal = moveVal;
                    bestMove.row = i;
                    bestMove.col = j;

                }  
            }
        }
    }
    board[bestMove.row][bestMove.col].setText(ai);
    playersTurn = true;
    CheckWinner();
}

任何想法&请帮助是需要过去3天我一直在调试我知道这段代码不是最好的事实上这段代码可能是最糟糕的你见过。
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