Recommended 10 articles for derived classes

This article mainly introduces the C # interface in the derived class and the external class call method, combined with the instance form analysis of C # Interface definition and specific use method, the need for friends can refer to the example of this article describes the C # interface in the derived class and the external class call method. Share it for your reference, as follows: C # interfaces are created by interface keywords, which can include attributes, methods, and other member variables in the interface. A derived class of an interface can implement a method in an interface. A class can inherit multiple interfaces to implement methods in these interfaces, and an interface can derive methods from multiple class interfaces that can be implemented by one or more of these classes. A method in an interface can be called directly in a derived class of an interface. In a derived class call Example://Interface public interface ipersonalservice{//interface method personaldto querybyuid (int uId)

1. Recommended 10 articles on external classes

Introduction: This article mainly introduces the C # interface in the derived class and the external class call method, combined with instance form analysis of C # Interface definition and specific use method, the need for friends can refer to the example of this article describes the C # interface in the derived class and the external class call method. Share it for your reference, as follows: C # interfaces are created by interface keywords, which can include attributes, methods, and other member variables in the interface. A derived class of an interface can implement a method in an interface. A class can inherit multiple interfaces to implement the methods in these interfaces, and an interface can also send ...

2. Detailed description of the C # interface invocation methods in derived and external classes example

Introduction: This article mainly introduces the C # interface in the derived class and the external class call method, combined with instance form analysis of C # Interface definition and specific use method, the need for friends can refer to the following

3. C # Design pattern-derived classes implement instance code sharing for non-virtual interface traps

Introduction: At first glance, there seems to be no difference between implementing an interface and covering a virtual method, in fact, the difference between implementing an interface and covering a virtual method is great!!!

4. What does the C # parameter with this mean (extension method)

Summary: The extension method enables you to "add" methods to an existing type without creating a new derived type, recompiling, or otherwise modifying the original type. An extension method is a special static method, but it can be called just like an instance method on an extended type. For client code written in C # and Visual Basic, there is no significant difference between calling extension methods and calling methods that are actually defined in the type.

5. Version control using the Override and New Keywords (C # Programming Guide)

Introduction: The 2>/dev/null is if your command goes wrong, the error report straight C # language has been designed so that versioning between base classes and derived classes in different libraries can evolve and remain backwards compatible. This has many meanings. For example, this means that introducing a new member in a base class with the same name as a member in a derived class is fully supported in C # and does not cause unexpected behavior. It also means that a class must explicitly declare whether a method is overriding an inherited method, or a new method that hides an inherited method with a similar name.

6. C # interface (Interface)

Summary: The interface defines the syntax contracts that should be followed when all classes inherit an interface. The interface defines the "what" part of the syntax contract, and the derived class defines the "How to" section of the syntax contract.

7. C # Learning Diary---Interface (interface) type

Summary: An interface contains a definition of a set of related functions that a class or struct can implement, for example, using an interface to include behaviors from multiple sources in a class. Because the C # language does not support multiple inheritance, multiple inheritance can be implemented through interfaces. In short, the interface contains only the declarations of members (properties, events, indexers). How the definition of a member is implemented is determined by his derived class.

8. C # Learning Diary---multiple inheritance

Introduction: Inheritance is one of the most important concepts in object-oriented programming. Inheritance allows us to define another class based on one class to define a class, and when a class derives from another class, the derived class inherits the attribute from the base class.

9. Java instanceof Keyword Simple example

Summary: Instanceof maintains the concept of type, which refers to: "Are you this class?" Or are you a derived class of this class? ”

10. "C # Tutorial" C # Interface (Interface)

Summary: The interface defines the syntax contracts that should be followed when all classes inherit an interface. The interface defines the "what" part of the syntax contract, and the derived class defines the "How to" section of the syntax contract.

"Related question and answer recommendation":

On the virtual method problem of C + +

C + +-inherited access to derived classes

In C + + public inheritance, private members can only be accessed through the base class interface, and if I cast the derived class to a base class, can I access its base class private members

C + +-a function with the same name as a different parameter in a derived class can be declared as a virtual function

C + +-derived class overloaded operators why is it not possible to use a base class object?