(Solved) : Part Various Publications Described Follows Paperpublication Class Following Title String Q31537283 . . . .

Part I

Various publications can be described as follows:

 A PaperPublication class with the following: a title (Stringtype), price (double type) and number

of pages (int type).

 A Book is a PaperPublication that in addition has thefollowing: an ISBN (long type), an issue

year (int type), and author(s)name (String type).

 A ChildrenBook is a Book that in addition has the following:minimum age (int type), which

indicates the minimum age that this book is expected for.

 An EducationalBook is a Book that in addition it has thefollowing: edition number (int type) and

speciality field (String type), such as pharmaceutical,engineering, commerce, etc.

 A Journal is a PaperPublication