@startuml left to right direction hide empty methods enum Gender { Female, Male } class Student { +Id : int +Lastname : string +Firstname : string +Gender : Gender +Schoolclass : string +Exams : List<Exam> } Student --> Gender class Exam { +Id : int +Subject : string +Examinator : string +Grade : int +Date : DateTime +Student : Student } Student <---> Exam class ExamDb { +Students : List<Student> +Exams : List<Exam> } ExamDb o--> Student ExamDb o--> Exam @enduml Submit amiga aws-orange black-knight bluegray blueprint cerulean-outline cerulean crt-amber crt-green cyborg-outline cyborg hacker lightgray mars materia-outline materia metal mimeograph minty plain reddress-darkblue reddress-darkgreen reddress-darkorange reddress-darkred reddress-lightblue reddress-lightgreen reddress-lightorange reddress-lightred sandstone silver sketchy-outline sketchy spacelab spacelab-white superhero-outline superhero toy united vibrant       🎉 Discover the future PlantUML Web Editor! 🚀  PNG  SVG  ASCII Art