4. Draw the class diagram for items sold in a book store. Every item in the store has a Universal Produce Code (UPC) and price. Books have a publisher and author, Comic Books have a publisher but not an author. Some other items just have a description in addition to the UPC and Price.

4. Draw the class diagram for items sold in a book store. Every item in the store has a Universal Produce Code (UPC) and price. Books have a publisher and author, Comic Books have a publisher but not an author. Some other items just have a description in addition to the UPC and Price.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Write the program, which has two classes one, is Date having members (day, month, year) and the other class is called Employee. The employee has Date class as member as each employee has Date of joining, Date of Birth etc. Determine if an employee joined the organization within last five yers if the current year is 2015. Determine if an Employee has age less than 40 years?
Please give the class diagram of the system and see if there is any problem in the operation of the classes
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I keep having an issue with the classifier, what can be done to fix it?
Write GroceryChain class with instance variables and a constructor. Each GroceryChain has a name, number of stores it owns, and annual revenue.
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Hi, this is a java programming question with direction of what to do. I'm just gonna attach the question sheet. Implement the following class diagram (diagram in attached photo)setFirstName() method should set the firstName attribute of the class.setLastName() method should set the lastName attribute of the class.setSpecialization() method should set the specialization attribute of the Doctor class.setHealthnumber() method should set the healthNumber attribute of the Patient class.setIllness() method should set the illness attribute of the Patient class.If you are not comfortable with set methods, you are free to create your own constructors to set the attribute values.Create a HospitalApplication class which contains the main method. Inside the main method the following should be done in the order mentioned. (Any other ordering would not guarantee full marks).Prompt for the following inputs for 5 Doctors. (Use for loops)• First name• Last name• SpecializationValid specializations…
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