Java ProgrammingFollowing the specifications given in the following detailed UML diagram, develop or modify all required classes:Design the Payroll interface, having the following two methods:calculateMonthlyGrossPay(): doubledisplayPayInfo(): void - displays the information of the employee, followed by the information about the pay for a monthModify Person.java to show that it implements Payroll interface - you will not implement the interface methods here, which will change the type of class Person is;Modify Student, Employee, and Faculty to express the fact that they inherit behavior from Person that includes Payroll. You do not implement any of the methods from the Payroll interface in any of these classes. Design Graduate class as a subclass of Student. This class inherits the attributes and behavior of Student. The class has an additional attribute:department: String - the department student is registered in.Create the accessor and mutator methods for a new attribute.Override the method toString() to include information about the new attribute.Design GTA class, standing for Graduate Teaching Assistant, as a subclass of Graduate, to include:hourlySalary: double - holding the GTA salary positionAccessor and mutator methods for hourlySalarycalculateMonthlyGrossPay(int weeklyHours): double displayPayInfo(): void Do not override the toString method of superclass Graduate. The payment information will be only accessed to specific payroll methodsDesign FullTimeFaculty class to include attributes and methods:salary: doubleAccessor and mutator methods for salaryimplementation of both methods in the Payroll interfaceDo not override the toString method of superclass Faculty. The payment information will be only accessed to specific payroll methods.Design AdjunctFaculty class to include attributes and methods:perCreditRate: doubleAccessor and mutator methods for perCreditRateImplementation of both methods in the Payroll interface. For adjunct faculty, the salary for a semester has two pays, so it will be calculated as noCredits*perCreditRate/2Do not override the toString method of superclass Faculty. The payment information will be only accessed to specific payroll methodsCreate a driver program similar to the one given in the guided assignment 3, named Personnel.java, that includes:Define and instantiate three objects as follows:p1 - type GTA, working 40 hoursp2 - type FullTimeFaculty paid for 4 weeksp3 - type AdjunctFaculty paid for 12 creditsDisplay information about all object declared.Display the payment information for a month.Compile all classes, run the driver program, and take a snapshot of the result.If you implement all the required methods properly, the driver program should generate outputs similar to the following:

>>>>>Payroll.java<<<<< public interface Payroll { double…

Answered: ava Programming Following the…

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter11: Advanced Inheritance Concepts

Section: Chapter Questions

Problem 16RQ

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Java Programming

Following the specifications given in the following detailed UML diagram, develop or modify all required classes:
- Design the Payroll interface, having the following two methods:
  - calculateMonthlyGrossPay(): double
  - displayPayInfo(): void - displays the information of the employee, followed by the information about the pay for a month
- Modify Person.java to show that it implements Payroll interface - you will not implement the interface methods here, which will change the type of class Person is;
- Modify Student, Employee, and Faculty to express the fact that they inherit behavior from Person that includes Payroll. You do not implement any of the methods from the Payroll interface in any of these classes.
- Design Graduate class as a subclass of Student.
  - This class inherits the attributes and behavior of Student.
  - The class has an additional attribute:
    - department: String - the department student is registered in.
  - Create the accessor and mutator methods for a new attribute.
  - Override the method toString() to include information about the new attribute.
- Design GTA class, standing for Graduate Teaching Assistant, as a subclass of Graduate, to include:
  - hourlySalary: double - holding the GTA salary position
  - Accessor and mutator methods for hourlySalary
  - calculateMonthlyGrossPay(int weeklyHours): double
  - displayPayInfo(): void
  - Do not override the toString method of superclass Graduate. The payment information will be only accessed to specific payroll methods
- Design FullTimeFaculty class to include attributes and methods:
  - salary: double
  - Accessor and mutator methods for salary
  - implementation of both methods in the Payroll interface
  - Do not override the toString method of superclass Faculty. The payment information will be only accessed to specific payroll methods.
- Design AdjunctFaculty class to include attributes and methods:
  - perCreditRate: double
  - Accessor and mutator methods for perCreditRate
  - Implementation of both methods in the Payroll interface. For adjunct faculty, the salary for a semester has two pays, so it will be calculated as noCredits*perCreditRate/2
  - Do not override the toString method of superclass Faculty. The payment information will be only accessed to specific payroll methods
Create a driver program similar to the one given in the guided assignment 3, named Personnel.java, that includes:
- Define and instantiate three objects as follows:
  - p1 - type GTA, working 40 hours
  - p2 - type FullTimeFaculty paid for 4 weeks
  - p3 - type AdjunctFaculty paid for 12 credits
Display information about all object declared.
Display the payment information for a month.
Compile all classes, run the driver program, and take a snapshot of the result.
If you implement all the required methods properly, the driver program should generate outputs similar to the following:

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