用于棋盘的Java 2D阵列无法正常工作

Question

我试图用一个8x8 2D阵列制作一个简单的国际象棋棋盘作为我的棋子。但输出并不是我想要的，因为数组刚刚下降。 （对不起我的语言。我不太擅长编程）这是我的代码：

public class ChessBoard {
    String[][] board = new String[8][8];
    public void fillBoard() {
        //Fills the empty spaces
        for (int i = 0; i < 8; i++) {
            for (int j = 0; j < 8; j++) {
                board[i][j] = " ";
            }
        }

        // Rooks
        board [0][0] = "R";
        board [0][7] = "R";
        board [7][0] = "R";
        board [7][7] = "R";

        // Knights
        board [0][1] = "N";
        board [0][6] = "N";
        board [7][1] = "N";
        board [7][6] = "N";

        //Bishops
        board [0][2] = "B";
        board [0][5] = "B";
        board [7][2] = "B";
        board [7][5] = "B";

        //Queens
        board [0][3] = "Q";
        board [7][3] = "Q";

        //Kings
        board [0][4] = "K";
        board [7][4] = "K";


        //Pawns
        for (int i = 0; i < 8; i++) {
            board[1][i] = "P";
            board[6][i] = "P";
        }
    }

    public void presentBoard() {
        for (int i = 0; i < 8; i++) {
           for (int j = 0; j < 8; j++) {
                System.out.println(board[i][j]);
            }
            System.out.println();
        }
    }
}

输出如下：

R
N
B
Q
K
B
N
R

P
P
P
P
P
P
P
P

P
P
P
P
P
P
P
P

R
N
B
Q
K
B
N
R

但意图是这个输出：

R N B Q K B N R
P P P P P P P P






P P P P P P P P
R N B Q K B N R

我做错了什么？

编辑： 我改变了

public void presentBoard() {
    for (int i = 0; i < 8; i++) {
        for (int j = 0; j < 8; j++) {
            System.out.println(board[i][j] + " "); //this line
        }
        System.out.println();
    }
}

但没有任何反应。

Answer 1

您正在寻找：

public void presentBoard() {
    for (int i = 0; i < 8; i++) {
        for (int j = 0; j < 8; j++) {
            System.out.print(board[i][j] + " ");
        }
        System.out.println();
    }
}

System.out.println()以新行打印。另一方面，System.out.print()保持在同一行。