尝试制作一个棋盘，它接受简单的字符串输入并将它们存储在Java中

public class Chessboard {
    private char[][] board;

    public Chessboard(int size) {
        board = new char[size][size];
    }

    public void setPiece(int row, int col, char piece) {
        board[row][col] = piece;
    }

    public char getPiece(int row, int col) {
        return board[row][col];
    }

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

public class ChessboardTest {
    public static void main(String[] args) {
        Chessboard chessboard = new Chessboard(8);
        chessboard.setPiece(3, 4, 'X');
        chessboard.setPiece(5, 2, 'O');
        chessboard.printBoard();
    }
}