用Java写一个扫雷小游戏

好，下面是一个简单的 Java 扫雷小游戏的实现：

import java.util.*;

public class Minesweeper {
    private int[][] board;
    private boolean[][] revealed;
    private int rows;
    private int cols;
    private int numMines;

    public Minesweeper(int rows, int cols, int numMines) {
        this.board = new int[rows][cols];
        this.revealed = new boolean[rows][cols];
        this.rows = rows;
        this.cols = cols;
        this.numMines = numMines;

        // initialize board with mines
        Random rand = new Random();
        int count = 0;
        while (count < numMines) {
            int randRow = rand.nextInt(rows);
            int randCol = rand.nextInt(cols);
            if (board[randRow][randCol] != -1) {
                board[randRow][randCol] = -1;
                count++;
            }
        }

        // fill in numbers for non-mine cells
        for (int i = 0; i < rows; i++) {
            for (int j = 0; j < cols; j++) {
                if (board[i][j] != -1) {
                    int countMines = 0;
                    if (i > 0 && j > 0 && board[i-1][j-1] == -1) countMines++;
                    if (i > 0 && board[i-1][j] == -1) countMines++;
                    if (i > 0 && j < cols-1 && board[i-1][j+1] == -1) countMines++;
                    if (j > 0 && board[i][j-1] == -1) countMines++;
                    if (j < cols-1 && board[i][j+1] == -1) countMines++;
                    if (i < rows-1 && j > 0 && board[i+1][j-1] == -1) countMines++;
                    if (i < rows-1 && board[i+1][j] == -1) countMines++;
                    if (i < rows-1 && j < cols-1 && board[i+1][j+1] == -1) countMines++;
                    board[i][j] = countMines;
                }
            }
        }
    }

    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 (revealed[i][j]) {
                    if (board[i][j] == -1) {
                        System.out.print("* ");
                    } else {
                        System.out.print(board[i][j] + " ");
                    }
                } else {
                    System.out.print(". ");
                }
            }
            System.out.println();
        }
    }

    public boolean click(int row, int col) {
        if (board[row][col] == -1) {
            System.out.println("Game over!");
            return true;
        }
        revealed[row][col] = true;
        if (board[row][col] == 0) {
            if (row > 0 && col > 0 && !revealed[row-1][col-1]) click(row-1, col-1);
            if (row > 0 && !revealed[row-1][col]) click(row-1, col);
            if (row > 0 && col < cols-1 && !revealed[row-1][col+1]) click(row-1, col+1);
            if (col > 0 && !revealed[row][col-1]) click(row, col-1);
            if (col < cols-1 && !revealed[row][col+1]) click(row, col+1);
            if (row < rows-1 && col > 0 && !revealed[row+1][col-1]) click(row+1, col-1);
            if (row < rows-1 && !revealed[row+1][col]) click(row+1, col);
            if (row < rows-1 && col < cols-1 && !revealed[row+1][col+1]) click(row+1, col+1);
        }
        return false;
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("Enter number of rows: ");
        int rows = scanner.nextInt();
        System.out.print("Enter number of columns: ");
        int cols = scanner.nextInt();
        System.out.print("Enter number of mines: ");
        int numMines = scanner.nextInt();
        Minesweeper game = new Minesweeper(rows, cols, numMines);
        game.printBoard();
        boolean gameOver = false;
        while (!gameOver) {
            System.out.print("Enter row to click: ");
            int row = scanner.nextInt();
            System.out.print("Enter column to click: ");
            int col = scanner.nextInt();
            gameOver = game.click(row, col);
            game.printBoard();
        }
        scanner.close();
    }
}

这个扫雷小游戏用的是命令行界面，玩家需要输入行号和列号来选择要点击的方块。游戏会在命令行界面中显示，并且会在游戏结束时显示“Game over!”。