java实现井字棋游戏代码示例

以下是一个简单的 Java 代码示例，实现了一个基本的井字棋游戏。该游戏由两个玩家轮流下棋，直到有一个玩家获胜或者棋盘被填满。

import java.util.Scanner;

public class TicTacToe {
    private static char[][] board = new char[3][3]; // 棋盘
    private static char currentPlayer = 'X'; // 当前玩家

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

    // 打印棋盘
    private static 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("-------------");
        }
    }

    // 切换玩家
    private static void switchPlayer() {
        if (currentPlayer == 'X') {
            currentPlayer = 'O';
        } else {
            currentPlayer = 'X';
        }
    }

    // 下棋
    private static void makeMove() {
        Scanner scanner = new Scanner(System.in);
        System.out.println("当前玩家：" + currentPlayer);
        System.out.print("请输入行号(0-2)：");
        int row = scanner.nextInt();
        System.out.print("请输入列号(0-2)：");
        int col = scanner.nextInt();
        if (board[row][col] == '-') {
            board[row][col] = currentPlayer;
        } else {
            System.out.println("该位置已经被占用，请重新输入。");
            makeMove();
        }
    }

    // 判断是否有玩家获胜
    private static boolean checkForWin() {
        // 判断每一行是否相同
        for (int i = 0; i < 3; i++) {
            if (board[i][0] != '-' && board[i][0] == board[i][1] && board[i][1] == board[i][2]) {
                return true;
            }
        }
        // 判断每一列是否相同
        for (int j = 0; j < 3; j++) {
            if (board[0][j] != '-' && board[0][j] == board[1][j] && board[1][j] == board[2][j]) {
                return true;
            }
        }
        // 判断两个对角线是否相同
        if (board[0][0] != '-' && board[0][0] == board[1][1] && board[1][1] == board[2][2]) {
            return true;
        }
        if (board[0][2] != '-' && board[0][2] == board[1][1] && board[1][1] == board[2][0]) {
            return true;
        }
        return false;
    }

    public static void main(String[] args) {
        initBoard();
        printBoard();
        while (!checkForWin() && !isBoardFull()) {
            makeMove();
            printBoard();
            switchPlayer();
        }
        if (checkForWin()) {
            System.out.println("恭喜玩家 " + currentPlayer + " 获胜！");
        } else {
            System.out.println("平局！");
        }
    }

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

请注意，此代码示例仅用于演示用途，可能需要进一步优化以适应实际情况。