I need this to work in BlueJGo off this code:public abstract class Employee{private String firstName;private String lastName;private String SSN;double salary;public Employee( String first, String last, String ssn ){firstName = first;lastName = last;SSN = ssn;}public void setfirstName( String first ){firstName = first; // should validate}public String getfirstName(){return firstName;}public void setlastName( String last ){lastName = last; // should validate}public String getlastName(){return lastName;}public void setSSN( String ssn ){this.SSN = ssn;}public String getSSN(){return SSN;}@Overridepublic String toString(){return String.format( "%-12s%-12s%-12s", getfirstName(), getlastName(), getSSN() );}public abstract double earnings();} 1 Description of the ProgramIn this assignment, you will make two classes, FullTime Employee and PartTimeEmployee,that inherit from a superclass Employee. The implementation of class Employee is given.You will also need to write a test program to test the methods you write for these two classes.The implementation details are described as follows.Stagel: In the first file FullTimeEmployee.java, you should include the following addi-tional instance variables and methods (other than all instance variables and methods inher-ited from class Employee):• Private instance variable weeklySalary;• A constructor takes four inputs (firstname, lastname, SSN and salary);One additional getter method to return the instance variable (accessor);• One setter method to set the instance variable (mutator);One overriding method earnings () that returns the weekly earnings (should be assame as the getSalary() method);• A method toString that converts an fulltime employee's information into string form(including firstname, last name, ssn, earning and class name). The string should have aneat output format as shown in Figure 1. You should override superclass toString()method.Stage2: In the second file PartTime Employee.java, you should include the following addi-tional instance variables and methods (other than all instance variables and methods inher-ited from class Employee):• Private instance variables wage (wage per hour) and hours (hours worked for week);• A constructor takes five inputs: firstname, firstname, SSN, hours, and wage;• Two additional getter methods to return the instance variables (accessor);• Two setter methods to set the instance variables (mutator);1 One overriding method earnings () that returns the earnings based on hours and wage.For hours in excess of 40 hours, the pay will be time-and-a-half (Check your outputwith the output in Figure 1 to make sure your calculation is correct);• A method toString that converts an parttime employee's information into string form(including firstname, lastname, ssn, earnings and class name). The string should havea neat output format as shown in Figure 1. You should override superclass toString()method.Blue: Terminal Window - Prog3_Employee_v2OptionsA List of Employees, Earnings and class Types:JohnLarrySallySmithDarrenAshleySmithLippertKellyWilsonWeberParker333-44-9982449-22-2340400-33-5571880-25-3412594-98-3411888-33-3399$800.50 FullTimeEmployee$250.20 PartTimeEmployee$400.00PartTimeEmployee$1,250.00 FullTimeEmployeePart Time EmployeeFullTimeEmployee$550.00$1,195.00Figure 1: A screenshot of the program output.Stage 3: In the third file EmployeeTester.java, you will need to do the followings:1. You will create an array of Employee type, with the array size of 10. The goal hereis to use this array to store the references for subclass objects (FullTime Employee,Part Time Employee). This is the application of Polymorphism we discussed in class.2. You will initialize each object of the array using the values from the file of "data.txt"[Note: Your must read the values in from the file using Scanner object, youare not allowed to initialize the objects manually]. The first value in each lineof the file could be 1 (Full Time Employee) or 2 (Part TimeEmployee), which will beused to determine which kind of object you will initialize. In another word, if you read1, then you will create an object of FullTime Employee. Otherwise, you will createan object of Part Time Employee. The remaining values of the lines will be used toinitialize each instance variable of that particular type of the object.3. You will print out the contents of each element (i.e., object) in the array using toString()method. Keep in mind, Polymorphism will take care for you so you don't need to checkwhat kind of objects you are invoking.Your outputs should look like the one I provide in Figure 1.2

Since the image of the data.txt file has not been provided, the data has been assumed to test the…

Answered: I need this to work in BlueJ Go off…

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