类的UML表示: 使用UML表示一个类,主要由三部分组成。类名、属性、方法。其中属性和方法的访问修饰符用-、#、+表示private、protected、public. (2) 类的关系: 在面向对象语言中,类的关系有很多种,可以概括为三类:泛化、依赖、关联。 (3)泛化 泛化指父类跟子类的关系,表示is-a的关系。如父类是抽象类或普通...
CheckOutForEdit CheckOutItem Checkpoint CheckpointBuild ChildWindow ChildWindowTemplate Choose ChooseTarget 類別 ClassCollection ClassDetails ClassFile ClassInternal ClassLibrary ClassMethodReference ClassMethodReferenceAmbiguous ClassMissing ClassPrivate ClassProtected ClassPublic ClassSealed ClassShortcut CleanData Clea...
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"-"表示私有(private),"+"表示公有(public),"#"表示受保护(protected) Figure UML-5-2-1 Figure UML-5-2-1 对应的代码 public class Dialler { private Vector digits; int nDigits; public void digit(int n); protected boolean recordDigit(int n); }; 3. 关联 大多数情况下是表示对象实例持有着...
Classes or objects that have access to a protected attribute or operation can read and write its value, and can invoke its behavior, but only if they are derived from the same class. Private visibility is indicated by a “-” symbol. Classes or objects that have access to a private ...
For this reason the Visibility property of the price attribute has been set to "Private(-)" which has been indicated by the "-" symbol in front of the attribute name. Other values of the Visibility property are "Public(+)", which is the default, "Package" and "Protected(#)". In ...
Works best for: Operations, Diagrams, Workflows What is the best way to solve any problem your team faces? Go straight to the root. That means identifying the root causes of the problem, and fishbone diagrams are designed to help you do it best. Also known as the Ishikawa Diagram (named...
类图用来展现一组类、类的特性以及其类相互之间的关系,一个类图由一组类以及它们之间的关系构成,类图用来对系统的领域概念以及静态结构进行建模。 在软件模型中,类图是最基本、也最重要的一种图。 类图中的元素有类、接口、协作、关系、注释、约束和包。
# protected ~ package2 – private — implementation visibility (inaccessible to other objects)2 (+) forced public. Override of an interface method that should be treated as private, even if it’s declared public.2 UML 2.0 permits C++-style grouping: public a(): int b(): void privat...
Protected or Private建议在类中可以在嵌套类,friends中或同一类中看到类。 •Package or ImplementationSuggests that the class can be seen only by other classes in the same package.Package或Implementation建议该类只能由同一包中的其他类看到。 access violation 访问冲突 ...