用 java 实现五子棋

好的，以下是 Java 实现五子棋的代码示例：

import java.util.Scanner;

public class FiveChess {
    private static final int ROWS = 15; // 棋盘行数
    private static final int COLS = 15; // 棋盘列数
    private static final int EMPTY = 0; // 空格子
    private static final int BLACK = 1; // 黑棋
    private static final int WHITE = 2; // 白棋
    private int[][] board; // 棋盘数组
    private int currentPlayer; // 当前落子方

    public FiveChess() {
        board = new int[ROWS][COLS];
        currentPlayer = BLACK; // 黑棋先行
    }

    // 落子
    public void play(int row, int col) {
        if (board[row][col] != EMPTY) {
            throw new RuntimeException("该位置已有棋子！");
        }
        board[row][col] = currentPlayer;
        currentPlayer = (currentPlayer == BLACK) ? WHITE : BLACK; // 切换落子方
    }

    // 判断游戏是否结束
    public boolean isGameOver() {
        return isWin(BLACK) || isWin(WHITE) || isDraw();
    }

    // 判断是否平局
    public boolean isDraw() {
        for (int i = 0; i < ROWS; i++) {
            for (int j = 0; j < COLS; j++) {
                if (board[i][j] == EMPTY) {
                    return false;
                }
            }
        }
        return true;
    }

    // 判断是否获胜
    public boolean isWin(int player) {
        for (int i = 0; i < ROWS; i++) {
            for (int j = 0; j < COLS; j++) {
                if (board[i][j] == player) {
                    // 判断横向是否连续五子
                    if (j + 4 < COLS &&
                            board[i][j + 1] == player &&
                            board[i][j + 2] == player &&
                            board[i][j + 3] == player &&
                            board[i][j + 4] == player) {
                        return true;
                    }
                    // 判断纵向是否连续五子
                    if (i + 4 < ROWS &&
                            board[i + 1][j] == player &&
                            board[i + 2][j] == player &&
                            board[i + 3][j] == player &&
                            board[i + 4][j] == player) {
                        return true;
                    }
                    // 判断左斜是否连续五子
                    if (i + 4 < ROWS && j + 4 < COLS &&
                            board[i + 1][j + 1] == player &&
                            board[i + 2][j + 2] == player &&
                            board[i + 3][j + 3] == player &&
                            board[i + 4][j + 4] == player) {
                        return true;
                    }
                    // 判断右斜是否连续五子
                    if (i + 4 < ROWS && j - 4 >= 0 &&
                            board[i + 1][j - 1] == player &&
                            board[i + 2][j - 2] == player &&
                            board[i + 3][j - 3] == player &&
                            board[i + 4][j - 4] == player) {
                        return true;
                    }
                }
            }
        }
        return false;
    }

    // 打印棋盘
    public void printBoard() {
        System.out.print("  ");
        for (int j = 0; j < COLS; j++) {
            System.out.print(j + " ");
        }
        System.out.println();
        for (int i = 0; i < ROWS; i++) {
            System.out.print(i + " ");
            for (int j = 0; j < COLS; j++) {
                if (board[i][j] == EMPTY) {
                    System.out.print("+ ");
                } else if (board[i][j] == BLACK) {
                    System.out.print("● ");
                } else {
                    System.out.print("○ ");
                }
            }
            System.out.println(i);
        }
        System.out.print("  ");
        for (int j = 0; j < COLS; j++) {
            System.out.print(j + " ");
        }
    }

    public static void main(String[] args) {
        FiveChess game = new FiveChess();
        Scanner scanner = new Scanner(System.in);
        while (!game.isGameOver()) {
            game.printBoard();
            System.out.print("请 " + ((game.currentPlayer == BLACK) ? "黑方" : "白方") + " 落子（例如：3,4）：");
            String input = scanner.nextLine();
            String[] parts = input.split(",");
            int row = Integer.parseInt(parts[0]);
            int col = Integer.parseInt(parts[1]);
            try {
                game.play(row, col);
            } catch (RuntimeException e) {
                System.out.println(e.getMessage());
            }
        }
        game.printBoard();
        if (game.isDraw()) {
            System.out.println("平局！");
        } else {
            System.out.println(((game.currentPlayer == BLACK) ? "白方" : "黑方") + " 获胜！");
        }
    }
}

使用上述代码可以在控制台上实现五子棋游戏。