Question

我在构造函数中遇到此问题我希望能够从供应商类中获取supplierName并将其添加到产品中。

public class ProductService {

    private Map<Long, Product> products = DatabaseClass.getProducts();

    public ProductService(){
        products.put(1L,new Product(1,1,"Lighter","Gift",5000,"Supplier1"));
        products.put(2L,new Product(2,2,"Lighter","Gift",3500,"supplier2"));

    }

但问题在于我到达我的产品服务类

supplier1

它给我supplier2＆amp; cv::Mat img = cv::imread("E:\\Workspace\\KS\\excercise\\oBwBH.jpg", 0); cv::Mat workingMat; cv::GaussianBlur(img, workingMat, cv::Size(101, 101), 31, 31); //high blur to extract background light img = img - 0.7*work; //adjust light level cv::normalize(img, img, 0, 255, cv::NORM_MINMAX); \\use whole range cv::medianBlur(img, img, 5); \\remove noise cv::Canny(img, work, 100, 200); \\extract lines; you could do hough lines instead since it has canny inside.。

任何帮助都会得到满足。

Answer 1

如果您编辑代码的格式，您可以清楚地看到您尝试将字符串"Supplier1"和"supplier2"解析为构造函数，该构造函数接受Supplier作为对象类型。

如果您有一个已定义的类Supplier，请将构造函数调用更改为：

products.put(2L,new Product(2,2, "Lighter","Gift",3500,new Supplier(...)));

或者如果供应商应该是String，则更改其声明和构造函数。

private String supplier;

public Product(long id, long barcode, String description, String zone, int quantity, String supplier) { .... }

所有案例的结论是：请格式化！：）

Answer 2

您在"Supplier1"和Supplier2中提供字符串，而构造函数需要对象"Supplier"

Java Rest构造函数继承

2 个答案: