Đang Thực Hiện

JAVA 10 & 11

must be done by 4pm today

Project 10: Chapter 8

Inheritance--The Person/Employee/Student Classes

Create a "person-employee-student" project with two class files, a superclass and a subclass, as per the follow specifications:

Person

(the super class)

String firstName

String lastName

String address

Employee

(extends from Person)

int employeeID

(between 101 & 999 is valid--

zero (0) is empty)

double payRate

(between 7.50 and 75.00 is valid--

zero (0.0) is empty)

--or--

Student

(extends from Person)

int creditsTaken

(between 1 and 199 is valid--

zero (0) is empty

double gpa

(between zero (0.0) and 4.0 is valid--

minus one (-1.0) is empty)

--Write either the Employee or Student subclass, not both--

The superclass (Person) contains three instance variables (fields) and the subclass (either Employee or Student) will contain two instance variables (fields) so that effectively either subclass will have five variables, two of its own and the three it inherits from its superclass.

Both classes should have two constructors:

The superclass has one that takes no arguments and passes empty strings to the three set methods for its instance variables, and another that takes three String arguments and passes those values to the three set methods.

The subclass (either Employee or Student) includes a no argument constructor which passes zero (0) values to the set methods for its instance variables, as well a constructor that takes five arguments, three Strings which it passes immediately to the superclass constructor that takes three String arguments, and two numeric variables, an int and a double, which values it passes to the two set methods for its instance variables.

All classes should have a set method (which contains the validation coding where appropriate based on the validation rules specified above; there are default values for each of the subclass variables to indicate a null/empty value) and a get method for each of its instance variables.

Simply complete the two files above, the superclass and the subclass (either Employee or Student). Do not write a driver class.

Provide full documentation in the manner of the downloaded sample files for the unit; the superclass and subclass documentation should follow Javadoc standards including stating the validation rules, i.e. valid ranges and/or values, for the set methods.

The completed project with a copy of the two (2) classes (the .java files), "[url removed, login to view]" and either "[url removed, login to view]" or "[url removed, login to view]", submitted electronically via attachments to a Desire2Learn dropbox is due to Prof. Struck by 11:59 p.m. on the date specified in the course outline.

Kỹ năng: Java

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