java编写一个简单可进行游玩的五子棋

好的，以下是一个简单的 Java 五子棋游戏实现：

import java.util.Scanner;

public class Gomoku {

    // 棋盘大小
    private static final int BOARD_SIZE = 15;

    // 空格
    private static final int EMPTY = 0;

    // 黑子
    private static final int BLACK = 1;

    // 白子
    private static final int WHITE = 2;

    // 棋盘
    private static int[][] board = new int[BOARD_SIZE][BOARD_SIZE];

    // 当前落子的玩家，初始为黑方
    private static int currPlayer = BLACK;

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while (true) {
            // 打印棋盘
            printBoard();

            // 落子
            System.out.println("当前是 " + (currPlayer == BLACK ? "黑方" : "白方") + " 落子，请输入坐标（如：3,4）：");
            String input = scanner.nextLine();
            String[] inputs = input.split(",");
            if (inputs.length != 2) {
                System.out.println("无效的输入，请重新输入！");
                continue;
            }
            int x = Integer.parseInt(inputs[0]);
            int y = Integer.parseInt(inputs[1]);
            if (x < 0 || x >= BOARD_SIZE || y < 0 || y >= BOARD_SIZE) {
                System.out.println("超出了棋盘范围，请重新输入！");
                continue;
            }
            if (board[x][y] != EMPTY) {
                System.out.println("此处已有棋子，请重新输入！");
                continue;
            }
            board[x][y] = currPlayer;

            // 判断胜负
            if (checkWin(x, y)) {
                printBoard();
                System.out.println((currPlayer == BLACK ? "黑方" : "白方") + " 获胜！");
                break;
            }

            // 切换玩家
            currPlayer = currPlayer == BLACK ? WHITE : BLACK;
        }
        scanner.close();
    }

    // 打印棋盘
    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] == EMPTY ? "+" : board[i][j] == BLACK ? "●" : "○"));
            }
            System.out.println();
        }
    }

    // 判断胜负
    private static boolean checkWin(int x, int y) {
        int count = 1;

        // 横向
        for (int i = x - 1; i >= 0; i--) {
            if (board[i][y] == currPlayer) {
                count++;
            } else {
                break;
            }
        }
        for (int i = x + 1; i < BOARD_SIZE; i++) {
            if (board[i][y] == currPlayer) {
                count++;
            } else {
                break;
            }
        }
        if (count >= 5) {
            return true;
        }

        // 纵向
        count = 1;
        for (int i = y - 1; i >= 0; i--) {
            if (board[x][i] == currPlayer) {
                count++;
            } else {
                break;
            }
        }
        for (int i = y + 1; i < BOARD_SIZE; i++) {
            if (board[x][i] == currPlayer) {
                count++;
            } else {
                break;
            }
        }
        if (count >= 5) {
            return true;
        }

        // 左上到右下
        count = 1;
        for (int i = x - 1, j = y - 1; i >= 0 && j >= 0; i--, j--) {
            if (board[i][j] == currPlayer) {
                count++;
            } else {
                break;
            }
        }
        for (int i = x + 1, j = y + 1; i < BOARD_SIZE && j < BOARD_SIZE; i++, j++) {
            if (board[i][j] == currPlayer) {
                count++;
            } else {
                break;
            }
        }
        if (count >= 5) {
            return true;
        }

        // 右上到左下
        count = 1;
        for (int i = x - 1, j = y + 1; i >= 0 && j < BOARD_SIZE; i--, j++) {
            if (board[i][j] == currPlayer) {
                count++;
            } else {
                break;
            }
        }
        for (int i = x + 1, j = y - 1; i < BOARD_SIZE && j >= 0; i++, j--) {
            if (board[i][j] == currPlayer) {
                count++;
            } else {
                break;
            }
        }
        if (count >= 5) {
            return true;
        }

        return false;
    }
}

在这个实现中，我们通过一个二维数组来表示棋盘，其中 `EMPTY` 表示空格，`BLACK` 表示黑子，`WHITE` 表示白子。通过 `printBoard()` 方法来打印棋盘，通过 `checkWin(int x, int y)` 方法来判断胜负。在落子时，我们通过 `Scanner` 类来读取用户输入，判断输入是否合法，并且切换玩家。当有一方胜出时，游戏结束并且打印胜者。