java - TicTacToe 打印棋盘

Question

我正在尝试创建 TicTacToe 游戏，但想问一个问题。我有一个 2d char 数组，现在用下划线填充 - '_'。我的问题是如何每行输出三个下划线？提前致谢!

import java.util.Scanner;
import java.util.*;
public class TicTacToe {

    public static void main(String[] args){
        Scanner kbd = new Scanner(System.in);

        char[][] theBoard = new char[3][3];

        for(int i = 0; i < theBoard.length; i++){
            for(int j = 0; j < theBoard[i].length; j++){
                theBoard[i][j] = '_';
            }
        }

        for(int i = 0; i < theBoard.length; i++){
            for(int j = 0; j < theBoard[i].length; j++){

                System.out.print(theBoard[i][j] + " ");
            }
        }
    }



}

Answer 1

修改你的代码如下:

    for(int i = 0; i < theBoard.length; i++){
        for(int j = 0; j < theBoard[i].length; j++){

            System.out.print(theBoard[i][j] + " ");
        }
        System.out.println();
    }

这样，您将在一行完成后移至新行。

__更新__

另一种方法是:

    for(int i = 0; i < theBoard.length; i++){
        StringBuffer buf = new StringBuffer();
        for(int j = 0; j < theBoard[i].length; j++){
            buf.append(theBoard[i][j] + " ");
        }
        System.out.println(buff.toString());
    }