Question

我正在为我获得的驱动程序编写课程，但因为它正在进行，

System.println(game.toString());

我以为我需要它来归还一块板子。我必须创建一个toString方法，它返回一个内部带有字符2d数组的板，数组中的每个字符都出现在这样的板中。（数字2是2d数组[0] [0]的字符）。

 ___________
|   |   |   |
|___|___|___|
|   |   |   |
|___|___|___|
|   |   |   |
|___|___|___|
|   |   |   |
|___|___|___|
| 2 |   |   |
|___|___|___|

董事会代表一个建筑物，我正在制作的课程从用户那里获得输入并产生这个。在这种情况下，用户输入5个楼层和3个房间。上图表示玩家2输入0,0。这导致[0] [0]处的2d数组成为字符'2'。

这是我的编码，它没有显示我想要的内容。

public String toString(){
       String Roof ="";
       for( int i = 0; i < room; i++){
            Roof += "  __";
        }
        Roof += "\n";
        String newLine = "\n";
        String walls = "|";
        for (int i = myHidingPlaces.length-1; i > 0 ; i--) {        
            for ( int j = 0 ; j < myHidingPlaces[0].length -1 ; j++){
                if(j >= myHidingPlaces[0].length -1){
                    walls += "\n";

                }else if(j < myHidingPlaces[0].length -1){
                    walls +=  myWinner+ " " + myHidingPlaces[i][j] + "|";
                }

            }

        }
 //                    "|__|__|__|\n";

        return  Roof + walls;//Arrays.toString(myHidingPlaces);  
    }

当我打2层和2个房间时这是我的编码显示的内容：

  __  __
|    |

Answer 1

我重写了toString方法以获得以下输出。

 ___________ 
|   |   |   |
|___|___|___|
|   |   |   |
|___|___|___|
|   | 6 |   |
|___|___|___|
|   |   |   |
|___|___|___|
|   |   |   |
|___|___|___|

这是您的代码，经过修改后可以运行。

package com.ggl.testing;

public class Board {

    private String[][] myHidingPlaces;

    // private String myWinner;

    public Board() {
        // this.myWinner = "";
        this.myHidingPlaces = new String[3][5];
        initializeMyHidingPlaces();
    }

    private void initializeMyHidingPlaces() {
        for (int i = 0; i < myHidingPlaces.length; i++) {
            for (int j = 0; j < myHidingPlaces[i].length; j++) {
                myHidingPlaces[i][j] = " ";
            }
        }
        myHidingPlaces[1][2] = "6";
    }

    public String toString() {
        StringBuilder builder = new StringBuilder();
        String newLine = System.getProperty("line.separator");
        String wall = "|";

        builder.append(" ");
        for (int i = 0; i < myHidingPlaces.length; i++) {
            if (i < (myHidingPlaces.length - 1)) {
                builder.append("____");
            } else {
                builder.append("___ ");
            }
        }
        builder.append(newLine);

        for (int i = (myHidingPlaces[0].length - 1); i >= 0; i--) {
            for (int j = 0; j < myHidingPlaces.length; j++) {
                builder.append(wall);
                builder.append(" ");
                builder.append(myHidingPlaces[j][i]);
                builder.append(" ");
            }
            builder.append(wall);
            builder.append(newLine);

            for (int j = 0; j < myHidingPlaces.length; j++) {
                builder.append(wall);
                builder.append("___");
            }
            builder.append(wall);
            builder.append(newLine);
        }

        return builder.toString();
    }

    public static void main(String[] args) {
        Board board = new Board();
        System.out.println(board);
    }

}

试图制作一个返回A Board的ToString方法

1 个答案: