Answer to Question #33085 in AJAX | JavaScript | HTML | PHP for Jack Lanyon

Question #33085
hi genius programmer,
I am working on my project on how to create an abstract class named book that includes private field for International Standard Book Number(ISBN), price, author and a protected field title. includes properties for each fields.(An ISBN is a unique number assigned to each published book . provide public get and set accessors for each field. create a subclass named TextBook that includes a private grade level field and a CoffeeTableSubclass that contains no additional fields. (note: you yourself have to decide your own data type and name field. in the subclass override the accessor method of the book's price so that TextBook must be priced between $20.00 and $80.00, inclusive and the CoffeeTableBook must be priced between $35.00 and $100.00, inclusive also provide get and set accessors for grade level field in the class named TextBook. overload constructors for all classes.

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