从文件中输入的数组不正确答案

【问题标题】：Array being inputted improperly from file从文件中输入的数组不正确
【发布时间】：2019-08-24 17:33:21
【问题描述】：

我正在开发一个 RPG，并且我将我的地图文件存储在一个文本文件中。当我将值导入到数组中时，我会得到一行随机的空值，其余的非空值已向左移动。

我已尝试重组我的导入方法，但没有任何修改起作用。

地图文件 - spawn.map

14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,6,3,3,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,1,11,4,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,1,2,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,1,2,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,1,2,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,1,2,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,1,2,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,6,5,7,8,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,1,0,0,2,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,1,0,0,2,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,10,4,4,12,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14

导入方法

package worldStuff;
import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;

public class World {

    public static String[][] initWorld(String[][]array,String name) throws FileNotFoundException {
        int i = 0;
        int j = 0;
        String string;
        Scanner input = new Scanner(new File("Resources/Map/"+name+".map"));
        input.useDelimiter(",|\\s+");
        while(j!=30) {
            string = input.next();
            array[j][i] = string;
            i++;
            if(i == 30) {
                i = 0;
                j++;
            }
        }
        input.close();
        return array;
    }

}

这是结果数组-

[[14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14],
 [, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14],
 [14, , 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14],
 [14, 14, , 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14],
 [14, 14, 14, , 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14],
 [14, 14, 14, 14, , 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14],
 [14, 14, 14, 14, 14, , 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14],
 [14, 14, 14, 14, 14, 14, , 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14],
 [14, 14, 14, 14, 14, 14, 14, , 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14],
 [14, 14, 14, 14, 14, 14, 14, 14, , 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14],
 [14, 14, 14, 14, 14, 14, 14, 14, 14, , 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14],
 [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, , 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14],
 [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, , 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14],
 [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, , 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14],
 [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, , 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14],
 [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, , 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14],
 [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, , 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14],
 [6, 3, 3, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, , 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14],
 [14, 1, 11, 4, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, , 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14],
 [14, 14, 1, 2, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, , 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14],
 [14, 14, 14, 1, 2, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, , 14, 14, 14, 14, 14, 14, 14, 14, 14, 14],
 [14, 14, 14, 14, 1, 2, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, , 14, 14, 14, 14, 14, 14, 14, 14, 14],
 [14, 14, 14, 14, 14, 1, 2, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, , 14, 14, 14, 14, 14, 14, 14, 14],
 [14, 14, 14, 14, 14, 14, 1, 2, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, , 14, 14, 14, 14, 14, 14, 14],
 [14, 14, 14, 14, 14, 14, 6, 5, 7, 8, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, , 14, 14, 14, 14, 14, 14],
 [14, 14, 14, 14, 14, 14, 14, 1, 0, 0, 2, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, , 14, 14, 14, 14, 14],
 [14, 14, 14, 14, 14, 14, 14, 14, 1, 0, 0, 2, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, , 14, 14, 14, 14],
 [14, 14, 14, 14, 14, 14, 14, 14, 14, 10, 4, 4, 12, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, , 14, 14, 14],
 [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, , 14, 14],
 [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, , 14]]

【问题讨论】：

每行是否包含相同数量的元素？如果是这样，我会逐行阅读并分别处理每一行。另外，这不是null 值而是空字符串，对吧？很可能是因为您的分隔符正则表达式处理了换行符。如果您在没有扫描仪的情况下逐行计算，则可以避免这种情况。你可以只处理一行填充数组中的行，依此类推

标签： java arrays file-io java.util.scanner

【解决方案1】：

我认为，空值是每行末尾的回车符。您可以在代码中添加检查

if (isBlank(string)) {
 continue;
}

或使用

array[j] = input.nextLine().split(',');

【讨论】：