Company is the base class that holds • Data fields named companyID (of integer type), and companyName (of string type). • A two-argument constructor to initialize data-fields with user-defined values • Appropriate accessor and mutator functions to set and get values of data fields Derive two classes from the Company class: • MobilePhone, which contains an attribute mobiulePhoneName of string type, mobileID of integer type, mobilePrice of integer type and setters and getters member function of all data members • Laptop which contains an string variable named laptopName along with a member function to set laptop name • Both derived classes have function display to show all data field values (including values inherited from the base class).

EBK JAVA PROGRAMMING
9th Edition
ISBN:9781337671385
Author:FARRELL
Publisher:FARRELL
Chapter11: Advanced Inheritance Concepts
Section: Chapter Questions
Problem 5RQ
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Company is the base class that holds
• Data fields named companyID (of integer type), and companyName (of string type).
• A two-argument constructor to initialize data-fields with user-defined values
• Appropriate accessor and mutator functions to set and get values of data fields
Derive two classes from the Company class:
• MobilePhone, which contains an attribute mobiulePhoneName of string type, mobileID
of integer type, mobilePrice of integer type and setters and getters member function of all
data members
• Laptop which contains an string variable named laptopName along with a member
function to set laptop name
• Both derived classes have function display to show all data field values (including values
inherited from the base class).
In the main() function, create objects of MobilePhone and Laptop classes and show the advantages
of using protected access specifier.

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