Apr 17, 2016 · I'm trying to understand how can I draw a UML diagram of a program that extends one class and implements another interface. I've made this sketch but I'm not sure if it is correct. A is a class that has some fields and methods and B is an interface which has some methods.

Feb 9, 2022 · An interface (including an abstract class) is a collection of methods. In an implementation relationship, a class implements an interface, and methods in the class implement all methods of the interface declaration.

Jan 3, 2025 · A UML class diagram is a visual tool that represents the structure of a system by showing its classes, attributes, methods, and the relationships between them. It helps everyone involved in a project—like developers and designers—understand how the system is organized and how its components interact. What are class Diagrams? What is a class?

Oct 7, 2020 · This is very practical when you have no much to say about the interface itself, but want to show what interfaces a class implements (lollipop) or is dependent on (socket). The interfaces details are then defined in another more detailed diagram.

Jul 29, 2024 · The most basic UML class diagram consists of one class. In each class the following are specified: The class name; Attributes (a.k.a., fields or characteristics) of the class or instance from the class. Behaviors (a.k.a., methods or member functions) of the class or instance from the class. Simple Class Diagram Associations

Feb 8, 2013 · The alternative way is to use the lollipop notation, right above every class that implements the interface: See this image from msdn website. For the full article see this link.

In a UML diagram, you can illustrate that a class supports, or relies on, the behavior that is defined in an interface. You typically use an interface realization relationship to specify that a class implements an interface and its methods.

Many classifiers can implement a single interface, each one providing a unique implementation. Interfaces support the hiding of information and protect client code by publicly declaring certain behavior or services.

Realisation indicates that one class implements behaviour specified by another. It is permissible for one implementation class to realise another; this means that the realising class must conform to the interface but need not use inheritance. An aside: The three class diagram perspectives and their relation to the new stuff taught here:

Any instance of a classifier that realizes (implements) the interface must fulfill that contract and thus provides services described by contract. Since interfaces are declarations, they are not instantiable.