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Develop a class diagram for a Message class for a cell phone company. Include generalizations for childclasses TextMessage, VideoMessage, and...

Develop a class diagram for a Message class for a cell phone company. Include generalizations for childclasses TextMessage, VideoMessage, and VoiceMessage.The Message class has attributes of account number and price. In addition it has the methodsgetInfo(accountNum) and calcPrice().The subclasses each have one additional attribute of thier own. TextMessage has characterLength,VideoMessage has messSize and VoiceMessage has numMinutes.Each subclass overrides the methods of the superclass with thier own. No getter or setter methods needto be documented.Use UMLet to draw the diagram, then copy and paste (or export an image and import) to a wordprocessing document. Don't forget your name and other requried info at the top of the page.

Grading RubricHow your answer will be graded

UMLet used and drawing pasted into word processing document. 10.00%

Message class drawn correctly 15.00%

TextMessage class drawn correctly 15.00%

VideoMessage class drawn correctly 15.00%

VoiceMessage class drawn correctly 15.00%

Inheritance drawn correctly 30.00%

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umldiagram.doc

NAME UML Diagram
[Type the document subtitle]
MMMMr
4/23/2016
[Type the abstract of the document here. The abstract is typically a short summary of the contents of
the document. Type the abstract...

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