java - 如何打印二维数组的结果

Question

the out come should look like this

String word = "grumpy";
int size = word.length();
char[][] matrix = new char[size][size];
for(int i=0; i<size; i++ )
{
   matrix[0][i]=word.charAt(i);
   matrix[size-1][i]=word.charAt(size-1-i);
   matrix[i][size-1]=word.charAt(size-1-i);
   matrix[i][0]=word.charAt(i);
}

请帮忙。我在如何打印代码结果时遇到问题，它应该看起来像 this .

Answer 1

你可以尝试这样的事情

   for (int i = 0; i < matrix.length; i++) {
        System.out.println(Arrays.toString(matrix[i]).replaceAll(",","")
                                                   .replaceAll("\u0000"," "));
    }

这会给你输出，

[g r u m p y]
[r         p]
[u         m]
[m         u]
[p         r]
[y p m u r g]