java实现井字棋游戏

以下是一个简单的 Java 代码实现井字棋游戏：

import java.util.Scanner;

public class TicTacToe {
    private char[][] board; // 二维数组表示棋盘
    private char currentPlayer; // 当前玩家

    public TicTacToe() {
        board = new char[3][3];
        currentPlayer = 'X';
        initializeBoard();
    }

    // 初始化棋盘
    public void initializeBoard() {
        for (int i = 0; i < 3; i++) {
            for (int j = 0; j < 3; j++) {
                board[i][j] = '-';
            }
        }
    }

    // 打印棋盘
    public void printBoard() {
        System.out.println("-------------");
        for (int i = 0; i < 3; i++) {
            System.out.print("| ");
            for (int j = 0; j < 3; j++) {
                System.out.print(board[i][j] + " | ");
            }
            System.out.println();
            System.out.println("-------------");
        }
    }

    // 判断棋盘是否已满
    public boolean isBoardFull() {
        boolean isFull = true;
        for (int i = 0; i < 3; i++) {
            for (int j = 0; j < 3; j++) {
                if (board[i][j] == '-') {
                    isFull = false;
                }
            }
        }
        return isFull;
    }

    // 判断是否有玩家胜利
    public boolean checkForWin() {
        boolean rowWin = checkRowsForWin();
        boolean columnWin = checkColumnsForWin();
        boolean diagonalWin = checkDiagonalsForWin();
        return rowWin || columnWin || diagonalWin;
    }

    // 检查行是否有玩家胜利
    private boolean checkRowsForWin() {
        for (int i = 0; i < 3; i++) {
            if (checkRowCol(board[i][0], board[i][1], board[i][2])) {
                return true;
            }
        }
        return false;
    }

    // 检查列是否有玩家胜利
    private boolean checkColumnsForWin() {
        for (int i = 0; i < 3; i++) {
            if (checkRowCol(board[0][i], board[1][i], board[2][i])) {
                return true;
            }
        }
        return false;
    }

    // 检查对角线是否有玩家胜利
    private boolean checkDiagonalsForWin() {
        return checkRowCol(board[0][0], board[1][1], board[2][2])
                || checkRowCol(board[0][2], board[1][1], board[2][0]);
    }

    // 检查一行或一列是否都是同一个玩家的棋子
    private boolean checkRowCol(char c1, char c2, char c3) {
        return c1 != '-' && c1 == c2 && c2 == c3;
    }

    // 切换玩家
    public void changePlayer() {
        if (currentPlayer == 'X') {
            currentPlayer = 'O';
        } else {
            currentPlayer = 'X';
        }
    }

    // 玩家下棋
    public void play() {
        Scanner scanner = new Scanner(System.in);
        while (!isBoardFull() && !checkForWin()) {
            System.out.println(currentPlayer + " 的回合，请输入行和列（1-3）：");
            int row = scanner.nextInt() - 1;
            int col = scanner.nextInt() - 1;
            if (row >= 0 && row < 3 && col >= 0 && col < 3 && board[row][col] == '-') {
                board[row][col] = currentPlayer;
                changePlayer();
                printBoard();
            } else {
                System.out.println("无效的位置，请重新输入！");
            }
        }
        if (checkForWin()) {
            System.out.println("恭喜 " + currentPlayer + " 获胜！");
        } else {
            System.out.println("平局！");
        }
        scanner.close();
    }

    public static void main(String[] args) {
        TicTacToe game = new TicTacToe();
        game.printBoard();
        game.play();
    }
}

以上代码只是一个简单的实现，可以根据需要进行修改和优化。