执行两个二维数组之间的交叉(JAVA)

public class ArrayCross {
    public static int[][] crossArrays(int[][] array1, int[][] array2) {
        int rows1 = array1.length;
        int cols1 = array1[0].length;
        int rows2 = array2.length;
        int cols2 = array2[0].length;

        // 检查两个数组是否可以交叉
        if (cols1 != rows2) {
            throw new IllegalArgumentException("无法进行交叉操作，数组维度不匹配");
        }

        int[][] result = new int[rows1][cols2];

        // 执行交叉操作
        for (int i = 0; i < rows1; i++) {
            for (int j = 0; j < cols2; j++) {
                int sum = 0;
                for (int k = 0; k < cols1; k++) {
                    sum += array1[i][k] * array2[k][j];
                }
                result[i][j] = sum;
            }
        }

        return result;
    }

    public static void main(String[] args) {
        int[][] array1 = {{1, 2}, {3, 4}};
        int[][] array2 = {{5, 6}, {7, 8}};

        int[][] result = crossArrays(array1, array2);

        // 输出结果
        for (int i = 0; i < result.length; i++) {
            for (int j = 0; j < result[0].length; j++) {
                System.out.print(result[i][j] + " ");
            }
            System.out.println();
        }
    }
}