java - 井字棋 - 2D 阵列

Question

我尝试创建 Tic Tac Toe，我能够填满我的棋盘，并且能够检查行和列以确定谁获胜。然而，我需要一些帮助来检查对角线，看看谁赢了。这是我到目前为止所拥有的。我是初学者，所以请不要让代码太难。

检查方法:

public boolean check(String[] [] board)
{
    int j = 0;
    for(int i = 0; i < board.length;i++) //row
    {
        if(board[i][j] == "X" || board[i][j+1] == "X" || board[i][j+2] == "X")
        {
          if(board[i][j] == board[i][j+1] & board[i][j] == board[i][j+2])
          {
              System.out.println("X wins!");
                return true;
          }
        }
    }
    int e = 0;
    for(j = 0; j < board.length;j++) //col
    {
        if(board[e][j] == "X" | board[e + 1][j] == "X"  | board[e + 2][j] == "X" )
        {
          if(board[e][j] == board[e + 1][j] & board[e][j] == board[e + 2][j])
          {
              System.out.println("X, wins");
                return true;
          }
        }
     }
    int d = 0;
    for(int ii = 0; ii < board.length; ii++) //diag
    {
        if(board[d][ii] != null || board[d + 1][ii] != null | board[d + 2][ii] != null)
        {
            if(board[d][ii] == board[d + 1][ii+1] & board[d][ii] == board[d + 2][ii])
            {
                System.out.println("X, wins dig");
                return true;
            }
        }
    }
    int k = 0;
    for(int i = 0; i < board.length;i++) //row
    {
        if(board[i][k] == "O" || board[i][k+1] == "O" || board[i][k+2] == "O")
        {
          if(board[i][k] == board[i][k+1] & board[i][k] == board[i][k+2])
          {
              System.out.println("O wins!");
                return true;
          }
        }
    }
    int z = 0;
    for(k = 0; k < board.length; k++) //col
    {
        if(board[z][k] == "O" | board[z + 1][k] == "O"  | board[z + 2][k] == "O" )
        {
          if(board[z][k] == board[z + 1][k] & board[z][k] == board[z + 2][k])
          {
              System.out.println("O, wins");
                return true;
          }
        }
     }

    return false;
}

Answer 1

这个问题有一些您想要做的事情:

首先确保值不存在:(考虑评论中的建议)

public void fillX(String[][] board) {
    attemptToFillValue(board, "x");
}

public void fillO(String[][] board) {
    attemptToFillValue(board, "o");
}

private void attemptToFillValue(String[][]board,  String value) {
    do {
        int r = Integer.parseInt(JOptionPane.showInputDialog("What row from 1-3?"));
        int c = Integer.parseInt(JOptionPane.showInputDialog("What column from 1-3?"));
        if (board[r - 1][c - 1] != null) {
            board[r - 1][c - 1] = value;
            return;
        } else {
            //Warn then that value already exists in some way
        }
    } while (true);
}

关于验证董事会是否有获胜者，我建议使用 for 循环并进行 3 次单独的检查。水平、垂直和对角线。

我不想为你完成整个作业，所以把它留给你