帮我用Java写一个五子棋

好的，以下是一个简单的五子棋游戏的 Java 代码：

import java.util.Scanner;

public class Gomoku {
    private static final int BOARD_SIZE = 15;
    private static final char EMPTY = '-';
    private static final char BLACK = 'X';
    private static final char WHITE = 'O';
    private static char[][] board = new char[BOARD_SIZE][BOARD_SIZE];
    private static Scanner scanner = new Scanner(System.in);

    public static void main(String[] args) {
        initBoard();
        printBoard();
        char currentPlayer = BLACK;
        while (true) {
            System.out.println("Player " + currentPlayer + "'s turn:");
            int row = getRow();
            int col = getCol();
            if (isValidMove(row, col)) {
                board[row][col] = currentPlayer;
                printBoard();
                if (isWinningMove(row, col)) {
                    System.out.println("Player " + currentPlayer + " wins!");
                    break;
                }
                if (isBoardFull()) {
                    System.out.println("Game over, it's a tie!");
                    break;
                }
                currentPlayer = (currentPlayer == BLACK) ? WHITE : BLACK;
            } else {
                System.out.println("Invalid move, please try again.");
            }
        }
    }

    private static void initBoard() {
        for (int i = 0; i < BOARD_SIZE; i++) {
            for (int j = 0; j < BOARD_SIZE; j++) {
                board[i][j] = EMPTY;
            }
        }
    }

    private static void printBoard() {
        System.out.print("  ");
        for (int i = 0; i < BOARD_SIZE; i++) {
            System.out.print(i + " ");
        }
        System.out.println();
        for (int i = 0; i < BOARD_SIZE; i++) {
            System.out.print(i + " ");
            for (int j = 0; j < BOARD_SIZE; j++) {
                System.out.print(board[i][j] + " ");
            }
            System.out.println();
        }
    }

    private static int getRow() {
        System.out.print("Enter row (0-" + (BOARD_SIZE - 1) + "): ");
        return scanner.nextInt();
    }

    private static int getCol() {
        System.out.print("Enter column (0-" + (BOARD_SIZE - 1) + "): ");
        return scanner.nextInt();
    }

    private static boolean isValidMove(int row, int col) {
        return (row >= 0 && row < BOARD_SIZE && col >= 0 && col < BOARD_SIZE && board[row][col] == EMPTY);
    }

    private static boolean isWinningMove(int row, int col) {
        char player = board[row][col];
        int count = 0;
        // check horizontal
        for (int i = Math.max(0, col - 4); i <= Math.min(BOARD_SIZE - 1, col + 4); i++) {
            if (board[row][i] == player) {
                count++;
            } else {
                count = 0;
            }
            if (count == 5) {
                return true;
            }
        }
        // check vertical
        count = 0;
        for (int i = Math.max(0, row - 4); i <= Math.min(BOARD_SIZE - 1, row + 4); i++) {
            if (board[i][col] == player) {
                count++;
            } else {
                count = 0;
            }
            if (count == 5) {
                return true;
            }
        }
        // check diagonal (top-left to bottom-right)
        count = 0;
        for (int i = Math.max(row - 4, 0), j = Math.max(col - 4, 0); i <= Math.min(row + 4, BOARD_SIZE - 1) && j <= Math.min(col + 4, BOARD_SIZE - 1); i++, j++) {
            if (board[i][j] == player) {
                count++;
            } else {
                count = 0;
            }
            if (count == 5) {
                return true;
            }
        }
        // check diagonal (bottom-left to top-right)
        count = 0;
        for (int i = Math.min(row + 4, BOARD_SIZE - 1), j = Math.max(col - 4, 0); i >= Math.max(row - 4, 0) && j <= Math.min(col + 4, BOARD_SIZE - 1); i--, j++) {
            if (board[i][j] == player) {
                count++;
            } else {
                count = 0;
            }
            if (count == 5) {
                return true;
            }
        }
        return false;
    }

    private static boolean isBoardFull() {
        for (int i = 0; i < BOARD_SIZE; i++) {
            for (int j = 0; j < BOARD_SIZE; j++) {
                if (board[i][j] == EMPTY) {
                    return false;
                }
            }
        }
        return true;
    }
}

这个程序实现了一个简单的五子棋游戏，玩家可以通过控制台输入行和列来下棋，程序会判断是否合法并更新棋盘，直到有一方获胜或棋盘满了为止。