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This article mainly introduces "how to use UML diagrams in VISIO to express abstract classes or abstract methods in C++ language". In daily operations, I believe that many people have doubts about how to use UML diagrams in VISIO to express abstract classes or abstract methods in C++ language. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the question of "how to use the UML diagram in VISIO to express abstract classes or abstract methods in C++"! Next, please follow the editor to study!

The specific meaning of Abstract: when abstraction is used as an adjective, it can be used to modify classes and methods. When a method is modified by abstract, it indicates that the method has no concrete implementation; when a class is modified by abstract, it indicates that the class cannot be instantiated.

UML is not tailor-made for a language such as C++ or Java.

In UML semantics, abstract classes and abstract operations correspond to the concepts of virtual and polymorphism in C++. If you want to use UML in VISIO to express an abstract class or abstract method in the C++ language, you can use the following steps.

Use UML diagram in VISIO to express abstract class or abstract method in C++ language. There is such a C++ abstract class, we use a class diagram to represent it.

ClassMyClass {voidMyMethod (); virtualvoidMyAbstractMethod () = 0;}

one

In UML Model Explorer, right-click the package icon, point to New, and then click Class.

In the UML Class Properties dialog box, type a name for the class, and then click the IsAbstract check box. This will indicate that the class is an abstract class that cannot be instantiated.

two

In the UML Class Properties dialog box, under actions, add a new action. In the Polymorphism column of an operation, select Polymorphism. This indicates that this operation is an abstract operation that is not implemented.

(note the "IsPolymorphic" check box is selected by default. )

three

But there is still a lack of an important step in the problem. That is:

In the UML method Properties dialog box, select the method for a specific action (this is MyAbstractMethod), in the pop-up dialog box below, clear the selection of the existing method check box, and then click OK. By default, all operations are methods, that is, by default, all operations are not abstract operations.

At this point, the study on "how to use the UML diagram in VISIO to express abstract classes or abstract methods in C++ language" is over. I hope I can solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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