HomeDiagramsClass diagramClass: Cardinalities on Every Relationship Kind

Class: Cardinalities on Every Relationship Kind

Cardinalities at both ends, at one end, with and without a label, next to inheritance, composition, aggregation, dependency and realization markers (#2114).

class-cardinalities-on-every-relationship-kind.mmd
classDiagram
  Animal "1" <|-- "0..*" Dog
  Car "1" *-- "4" Wheel
  Library "1" o-- "*" Book : holds
  Service "1" ..> "1..*" Config : reads
  Duck "*" ..|> "1" Swimmer
  Cart "1" --> Item
Output
Class diagram, Zombie Mermaid Animal Dog Car Wheel Library Book Service Config Duck Swimmer Cart Item 1 0..* 1 4 holds 1 * reads 1 1..* * 1 1

More Class diagram examples

Class diagram, Zombie Mermaid Animal + String name + int age + eat(): void + sleep(): void
Class: Basic Class
Class diagram, Zombie Mermaid User + String name - String password # int internalId ~ String packageField + login(): bool - hashPassword(): String # validate(): void ~ notify(): void
Class: Visibility Markers
Class diagram, Zombie Mermaid <<interface>> Serializable + serialize(): String + deserialize(data): void
Class: Interface Annotation
Class diagram, Zombie Mermaid <<abstract>> Shape + String color + area(): double + draw(): void
Class: Abstract Annotation
Class diagram, Zombie Mermaid <<enumeration>> Status ACTIVE INACTIVE PENDING DELETED
Class: Enum Annotation
Class diagram, Zombie Mermaid Animal + String name + eat(): void Dog + String breed + bark(): void Cat + bool isIndoor + meow(): void
Class: Inheritance (<|--)