Consider the class diagram of Exercise. Note that the Part, Chapter, and Section classes all include title and number attributes. Add an abstract class and an inheritance relationship to factor out these two attributes into the abstract class.
Exercise:
Extend the class diagram of Exercise to include the following attributes:
• a book includes a publisher, publication date, and an ISBN
• a part includes a title and a number
• a chapter includes a title, a number, and an abstract
• a section includes a title and a number.
Exercise:1
Draw a class diagram representing a book defined by the following statement: “A book is composed of a number of parts, which in turn are composed of a number of chapters. Chapters are composed of sections.” Focus only on classes and relationships.
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