生成一段马踏棋盘算法Java代码

以下是一段马踏棋盘算法的 Java 代码：

public class HorseChessboard {
    private int[][] chessboard;
    private int startX;
    private int startY;
    private int stepCount;
    private boolean finished;

    public HorseChessboard(int n) {
        this.chessboard = new int[n][n];
    }

    public void printChessboard() {
        for (int[] row : chessboard) {
            for (int num : row) {
                System.out.print(num + "\t");
            }
            System.out.println();
        }
    }

    public void horseTravel(int x, int y) {
        chessboard[x][y] = ++stepCount;
        if (stepCount == chessboard.length * chessboard.length) {
            finished = true;
            return;
        }
        int[][] nextMoves = getNextMoves(x, y);
        for (int[] nextMove : nextMoves) {
            int nextX = nextMove[0];
            int nextY = nextMove[1];
            if (chessboard[nextX][nextY] == 0) {
                horseTravel(nextX, nextY);
            }
        }
        if (!finished) {
            chessboard[x][y] = 0;
            stepCount--;
        }
    }

    private int[][] getNextMoves(int x, int y) {
        int[][] nextMoves = new int[8][2];
        int count = 0;
        if (canMove(x - 2, y - 1)) {
            nextMoves[count++] = new int[]{x - 2, y - 1};
        }
        if (canMove(x - 1, y - 2)) {
            nextMoves[count++] = new int[]{x - 1, y - 2};
        }
        if (canMove(x + 1, y - 2)) {
            nextMoves[count++] = new int[]{x + 1, y - 2};
        }
        if (canMove(x + 2, y - 1)) {
            nextMoves[count++] = new int[]{x + 2, y - 1};
        }
        if (canMove(x + 2, y + 1)) {
            nextMoves[count++] = new int[]{x + 2, y + 1};
        }
        if (canMove(x + 1, y + 2)) {
            nextMoves[count++] = new int[]{x + 1, y + 2};
        }
        if (canMove(x - 1, y + 2)) {
            nextMoves[count++] = new int[]{x - 1, y + 2};
        }
        if (canMove(x - 2, y + 1)) {
            nextMoves[count++] = new int[]{x - 2, y + 1};
        }
        return Arrays.copyOfRange(nextMoves, 0, count);
    }

    private boolean canMove(int x, int y) {
        return x >= 0 && x < chessboard.length && y >= 0 && y < chessboard.length;
    }

    public static void main(String[] args) {
        HorseChessboard horseChessboard = new HorseChessboard(8);
        horseChessboard.horseTravel(0, 0);
        horseChessboard.printChessboard();
    }
}