In a class diagram, how are static methods typically denoted?

In a class diagram, static methods are typically denoted with an underline. This notation helps to distinguish static methods from instance methods, making it clear which methods belong to the class itself rather than to instances of the class. By underlining the method name, it signifies that the method can be called on the class without needing an object of that class to be created. This practice facilitates better understanding and readability of class diagrams, especially in complex systems where distinguishing between instance-specific and class-level behavior is crucial.

Other notations, such as bold font or strikethrough, do not have standard meanings regarding the representation of static methods in class diagrams. Similarly, an asterisk does not indicate static methods and has its own specific contextual uses in diagrams.