Question

我正在开发一款简单的井字游戏4x4游戏。我有input（）函数，用户输入他的数据，printBoard（）打印板本身，analyzeBoard（），其中所有的计算选择赢家和完成（）简单返回状态。我的问题是，即使我找到胜利者，我也不能停止输入（）工作，并且它会一遍又一遍地保持印刷板。我第一次认为问题出现在analyzeBoard（）中，但后来我发现它实际上返回了我需要的所有内容，问题出在input（）中。当我尝试从输入中返回时，它或者说要丢失返回语句，或者即使它可以看到胜利者也不会停止。

public char input ()
{   
    while (status == false || numberOfMovesLeft > 0)
    {
        System.out.println("User "+ whoseTurn + " enter your move: "); //prompt user to make a move
        char userInput = reader.next().charAt(0); // local variable to hold user input

        // validation of user input
        while (userInput != 'a' && userInput != 'b' && userInput != 'c' 
            && userInput != 'd' && userInput != 'e' && userInput != 'f' 
            && userInput != 'g' && userInput != '1' && userInput != '2'
            && userInput != '3' && userInput != '5' && userInput != '6'
            && userInput != '6' && userInput != '7' && userInput != '8'
            && userInput != '9')
        {
            System.out.println("Try again, user "+ whoseTurn + " enter your move: ");
            userInput = reader.next().charAt(0);
        }

        // places user input into a board cell
        for (int row = 0; row < board.length; row++)
        {
            for (int col = 0; col < board[row].length; col++)
            {
                if (board[row][col] == userInput)
                {
                    board[row][col] = whoseTurn;

                }
            }
        }

        // check for tie result
        numberOfMovesLeft--;

        if (numberOfMovesLeft==0)
        {
            System.out.println("Tie!");
            winner = 'T';
            System.out.println(winner);
        }
        analyzeBoard();

        printBoard();

        done();
        whoseTurn = (whoseTurn == 'X') ? '0' : 'X';
    }
    return winner;
}

public void analyzeBoard()
{
    // row winner algoritm
    for (int row = 0; row <=3; row++)
    {
        for (int col = 0; col < 2; col++)
        {
            if (board[row][col] == board[row][col + 1] 
                &&
                board[row][col] == board[row][col + 2])
            {
                System.out.println("winner");
                winner = whoseTurn;
                System.out.println("winner "+ winner);
                System.out.println("whoseTurn "+ whoseTurn);
                status = true;
                System.out.println("status "+status);
                done();
            }
            else
            {
                //System.out.println("status "+status);
            }
        }
    }

    //column winner algoritm
    for (int row = 0; row <2; row++)
    {
        for (int col = 0; col <= 3; col++)
        {
            if (board[row][col] == board[row+1][col] && 
                    board[row][col] == board[row+2][col])
            {
                System.out.println("winner");
                winner = whoseTurn;
                System.out.println("winner "+ winner);
                System.out.println("whoseTurn "+ whoseTurn);
                status = true;
                //System.out.println("status "+status);
            }
        }
    }

    //diagonal winner algoritm
    for (int row = 0; row <2; row++)
    {
        for (int col = 0; col <2; col++)
        {
            if (board[row][col] == board[row+1][col+1] &&  
                    board[row][col] == board[row+2][col+2])
            {
                System.out.println("winner");
                winner = whoseTurn;
                System.out.println("winner "+ winner);
                System.out.println("whoseTurn "+ whoseTurn);
                status = true;
                //System.out.println("status "+status);
            }
        }
    }

    //diagonal winner algoritm
    for (int row = 0; row <2; row++)
    {
        for (int col = 2; col <=3; col++)
        {
            if (board[row][col] == board[row+1][col-1])
            {
                System.out.println("winner");
                winner = whoseTurn;
                System.out.println("winner "+ winner);
                System.out.println("whoseTurn "+ whoseTurn);
                status = true;
                //System.out.println("status "+status);
            }
        }
    }
}

Answer 1

您可以使用break;来终止当前循环，或使用return;来终止整个函数调用。

如何停止功能循环？

1 个答案: