Question

阵列初始化为0到20之间的随机数。如果该数组中的任何值为0，则此方法应将该行和列中的所有值更改为零。

相反，它会清除数组并将所有值更改为零。有什么想法吗？

     for (int row = 0; row < size; row++){
        for (int col = 0; col < size; col++){
            if (matrix[row][col] == 0){
                for (int k = 0; k < size; k++)
                    matrix[k][col] = 0;
                for (int l = 0; l < size; l++)
                    matrix[row][l] = 0;
            }
        }
    }
    System.out.println("Result:");
    for (int i = 0; i < size; i++){
        for (int j = 0; j < size; j++)
            System.out.printf("[%1$2s]", copy[i][j]);
        System.out.println();    
    }

Answer 1

对于仍在乎的人，这里是完整的代码

    Random random = new Random();
    int[][] matrix = new int[size][size];    
    for (int i = 0; i < size; i++){
        for (int j = 0; j < size; j++)
            matrix[i][j] = random.nextInt(20);
    }
    for (int row = 0; row < size; row++){
        for (int col = 0; col < size; col++){
            if (matrix[row][col] == 0){
                for (int k = 0; k < size; k++)
                    matrix[k][col] = 0;
                for (int l = 0; l < size; l++)
                    matrix[row][l] = 0;
            }
        }
    }

    System.out.println("Result:");
    for (int i = 0; i < size; i++){
        for (int j = 0; j < size; j++)
            System.out.printf("[%1$2s]", matrix[i][j]);
        System.out.println();    
    }

需要更改特定行和特定列中与零相交的所有值

1 个答案: