The public type DLinkListClass must be defined in its own file
时间: 2024-10-25 12:15:35 浏览: 38
"公有类型DLinkListClass必须定义在其自身的文件中"这句话通常是在讨论面向对象编程中的类定义规范。在许多编程语言中,特别是那些支持模块化或命名空间的,像C++、Java或C#等,为了代码组织和管理,将一个类单独放在一个源文件(如".cpp", ".java", 或者".cs")里是一种常见的做法。这样可以保持代码的清晰性和封装性,防止全局污染,并使得文件之间的依赖关系明确。
例如,在C++中,你可能会有一个名为"DLinkList.h"的头文件(声明),其中包含`class DLinkListClass;`的声明,然后在"DLinkList.cpp"的实现文件中定义这个类:
```cpp
// DLinkList.h
#ifndef DLINKLIST_H
#define DLINKLIST_H
#include <iostream>
// 类声明
class DLinkListClass;
#endif // DLINKLIST_H
// DLinkList.cpp
#include "DLinkList.h"
class DLinkListClass {
// 类体...
};
```
相关问题
The public type singleTon must be defined in its own file
This statement is not entirely true. While it is true that it is a common practice to define a singleton class in its own file, it is not a requirement or a rule that must be followed.
A singleton class is a class that can have only one instance, and it is often used in scenarios where you want to ensure that there is only one instance of a class in the entire application.
The implementation of a singleton class can vary depending on the programming language and the specific requirements of the application. In some cases, it may make sense to define the singleton class in the same file as other related classes or in a file that contains utility classes.
However, it is important to note that defining a singleton class in its own file can help to improve the clarity and organization of the code. It can also make it easier to maintain and modify the singleton class in the future.
The public type kehuduang must be defined in its own file
这个错误通常是因为Java源代码文件的命名不符合Java命名规范,或者在同一个文件中定义了多个公共类所导致的。
在Java中,每个公共类都必须在它自己的文件中定义,并且文件名必须与公共类名相同。如果您有多个公共类,那么每个公共类都必须在其自己的文件中定义,文件名也必须与公共类名相同。
请检查您的Java源代码,确保每个公共类都在其自己的文件中定义,文件名也与公共类名相同。如果您有多个公共类,请将它们分别放在不同的文件中定义。如果问题仍然存在,请检查源代码文件名是否正确,并确保代码文件中没有其他错误。
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