Question

Design and implement an Employee Payment System using single inheritance. This system will support three types of employees that are technician, engineer and manager. An employee has basic information such as last name, first name, address, telephone number and social security number. Basic operations include set month payment rate, calculate annual salary and actual payment. Tax is deducted at 20% of total payment. The company allows a and overtime pay rate. If a manager does an excellent job the company will give the manager additional 3% of hisher salary as a bonus. An interface should be developed to allow a user to input required information and display output information. technician to work overtime. Related information should include overtime hours You team project must satisfy the following requirements: 1) A Graphic User Interface must be developed to allow a user to input required information and display results. 2) If a user requests annual payment information the person's last name, first name, address, telephone number, total tax and total payment should be displayedT For a technician and a manager additional information should also be displayed, such as overtime payment, total bonus payment. 3) Single inheritance must be used to demonstrate the concept of inheritance. Requirements: a)This is an individual student project b) The program must be developed in JAVA using Netbeans 10.0 c) Student should use department programming standard. d) The program must execute correctly e) Please submit a readme.doc (word) file explaining how to run the program. Please include screenshots

Answer 1

//----- Employee.java -------

public class Employee {

private String firstName;

private String lastName;

private String address;

private String telephoneNumner;

private String socialSecurityNumber;

private double monthlyPaymentRate;

protected static final int TAX_RATE = 20;

public String getFirstName() {

return firstName;

}

public void setFirstName(String firstName) {

this.firstName = firstName;

}

public String getLastName() {

return lastName;

}

public void setLastName(String lastName) {

this.lastName = lastName;

}

public String getAddress() {

return address;

}

public void setAddress(String address) {

this.address = address;

}

public String getTelephoneNumner() {

return telephoneNumner;

}

public void setTelephoneNumner(String telephoneNumner) {

this.telephoneNumner = telephoneNumner;

}

public String getSocialSecurityNumber() {

return socialSecurityNumber;

}

public void setSocialSecurityNumber(String socialSecurityNumber) {

this.socialSecurityNumber = socialSecurityNumber;

}

public double getMonthlyPaymentRate() {

return this.monthlyPaymentRate;

}

public void setMonthlyPaymentRate(double monthlyPaymentRate) {

this.monthlyPaymentRate = monthlyPaymentRate;

}

public double calculateAnnualSalary() {

double annualSalary = getMonthlyPaymentRate() * 12;

return annualSalary;

}

public double calculateAtualPayment() {

double actualPayment = calculateAnnualSalary();

System.out.println("\t Annual Salary :"+actualPayment);

double totalTax = actualPayment * TAX_RATE / 100;

System.out.println("\t Total Tax :"+totalTax);

actualPayment = actualPayment - totalTax;

System.out.println("\t-------------------------------");

System.out.println("\t Total Payment :"+actualPayment);

return actualPayment;

}

}

// ----- Technician.java ---------

public class Technician extends Employee{

private int overtimeHours;

private double overtimeRate;

public int getOvertimeHours() {

return overtimeHours;

}

public void setOvertimeHours(int overtimeHours) {

this.overtimeHours = overtimeHours;

}

public double getOvertimeRate() {

return overtimeRate;

}

public void setOvertimeRate(double overtimeRate) {

this.overtimeRate = overtimeRate;

}

@Override

public double calculateAtualPayment() {

double actualPayment = calculateAnnualSalary();

System.out.println("\t Annual Salary :"+actualPayment);

double overtimePayment = getOvertimeHours() * getOvertimeRate();

System.out.println("\t Over-Time Payment :"+overtimePayment);

actualPayment = calculateAnnualSalary() + overtimePayment;

double totalTax = actualPayment * TAX_RATE / 100;

System.out.println("\t Total Tax :"+totalTax);

actualPayment = actualPayment - totalTax;

System.out.println("\t-------------------------------");

System.out.println("\t Total Payment :"+actualPayment);

return actualPayment;

}

}

// -------- Engineer.java ----------

public class Engineer extends Employee {

}

// ------ Manager.java ----------

public class Manager extends Employee {

private static final int BONUS_RATE = 3;

private boolean isExcellentPerformer;

public boolean isExcellentPerformer() {

return isExcellentPerformer;

}

public void setExcellentPerformer(boolean isExcellentPerformer) {

this.isExcellentPerformer = isExcellentPerformer;

}

@Override

public double calculateAtualPayment() {

double actualPayment = calculateAnnualSalary();

System.out.println("\t Annual Salary :"+actualPayment);

double bonus = 0.0;

if(isExcellentPerformer()) {

bonus = actualPayment * BONUS_RATE / 100;

actualPayment = actualPayment + bonus;

}

System.out.println("\t Total Bonus :"+bonus);

double totalTax = actualPayment * TAX_RATE / 100;

System.out.println("\t Total Tax :"+totalTax);

actualPayment = actualPayment - totalTax;

System.out.println("\t-------------------------------");

System.out.println("\t Total Payment :"+actualPayment);

return actualPayment;

}

// ---------- PayrollProcessor.java --------------

import java.util.ArrayList;

import java.util.List;

import java.util.Scanner;

public class PayrollProcessor {

private static List<Employee> employees = new ArrayList<>();

public static void main(String[] args) {

Scanner scanner = new Scanner(System.in);

int opt = 0;

do {

System.out.println("Choose operation : ");

System.out.println("1. Enter Technician Details.");

System.out.println("2. Enter Engineer Details.");

System.out.println("3. Enter Manager Details.");

System.out.println("4. Display Annual Payment Information.");

System.out.println("5. Exit.");

opt = Integer.parseInt(scanner.nextLine());

switch(opt) {

case 1 :

employees.add(getTechnicianDetails(scanner));

break;

case 2 :

employees.add(getEngineerDetails(scanner));

break;

case 3 :

employees.add(getManagerDetails(scanner));

break;

case 4 :

displayAnnualPaymentInformation();

break;

case 5 :

System.out.println("Exiting System....!");

return;

default :

System.out.println("Incorrect input ! Choose proper option.");

break;

}

} while (opt != 5);

scanner.close();

}

private static Technician getTechnicianDetails(Scanner scanner) {

Technician technician = new Technician();

System.out.print("First Name:");

technician.setFirstName(scanner.nextLine());

System.out.print("Last Name:");

technician.setLastName(scanner.nextLine());

System.out.print("Address:");

technician.setAddress(scanner.nextLine());

System.out.print("Telephone Number:");

technician.setTelephoneNumner(scanner.nextLine());

System.out.print("Social Security Number:");

technician.setSocialSecurityNumber(scanner.nextLine());

System.out.print("Monthly Payment:");

technician.setMonthlyPaymentRate(Double.parseDouble(scanner.nextLine()));

System.out.print("Over Time Hours:");

technician.setOvertimeHours(Integer.parseInt(scanner.nextLine()));

System.out.print("Over Time Rate:");

technician.setOvertimeRate(Double.parseDouble(scanner.nextLine()));

System.out.print("Technician Information Added Successfully..!\n\n");

return technician;

}

private static Engineer getEngineerDetails(Scanner scanner) {

Engineer engineer = new Engineer();

System.out.print("First Name:");

engineer.setFirstName(scanner.nextLine());

System.out.print("Last Name:");

engineer.setLastName(scanner.nextLine());

System.out.print("Address:");

engineer.setAddress(scanner.nextLine());

System.out.print("Telephone Number:");

engineer.setTelephoneNumner(scanner.nextLine());

System.out.print("Social Security Number:");

engineer.setSocialSecurityNumber(scanner.nextLine());

System.out.print("Monthly Payment:");

engineer.setMonthlyPaymentRate(Double.parseDouble(scanner.nextLine()));

System.out.print("Engineer Information Added Successfully..!\n\n");

return engineer;

}

private static Manager getManagerDetails(Scanner scanner) {

Manager manager = new Manager();

System.out.print("First Name:");

manager.setFirstName(scanner.nextLine());

System.out.print("Last Name:");

manager.setLastName(scanner.nextLine());

System.out.print("Address:");

manager.setAddress(scanner.nextLine());

System.out.print("Telephone Number:");

manager.setTelephoneNumner(scanner.nextLine());

System.out.print("Social Security Number:");

manager.setSocialSecurityNumber(scanner.nextLine());

System.out.print("Monthly Payment:");

manager.setMonthlyPaymentRate(Double.parseDouble(scanner.nextLine()));

System.out.println("Is he a excellent performer(Y/N):");

manager.setExcellentPerformer(scanner.nextLine().equalsIgnoreCase("Y"));

System.out.print("Manager Information Added Successfully..!\n\n");

return manager;

}

private static void displayAnnualPaymentInformation() {

for(Employee emp : employees) {

displayEmployeeInfo(emp);

}

}

private static void displayEmployeeInfo(Employee emp) {

System.out.println("First Name : "+emp.getFirstName());

System.out.println("Last Name : "+emp.getLastName());

System.out.println("Address : "+emp.getAddress());

System.out.println("Telephone Number : "+emp.getTelephoneNumner());

System.out.println("Social Security Number : "+emp.getSocialSecurityNumber());

System.out.println("Payment Information : "+ emp.calculateAtualPayment());

}

}

// Sample output

Choose operation: 1. Enter Technician Details. 2. Enter Engineer Details 3. Enter Manager Details. 4. Display Annual Payment Information 5. Exit. First Name: Joy Last Name:Wilson Address:Detroit Telephone Number:123-234-3456 Social Security Number:192837465 Monthly Payment:2000 Over Time Hours:5 Over Time Rate:20 Technician Information Added Successfully..! Choose operation: 1. Enter Technician Details. 2. Enter Engineer Details. 3. Enter Manager Details. 4. Display Annual Payment Information 5. Exit. First Name:Serena Last Name: Perry Address: Rosewoods Telephone Number:987-876-7654 Social Security Number:918273645 Monthly Payment:3500 Engineer Information Added Successfully..!

Choose operation: 1. Enter Technician Details. 2. Enter Engineer Details. 3. Enter Manager Details. 4. Display Annual Payment Information. 5. Exit. 3 First Name:Austin Last Name:Moore Address: Seattle Telephone Number:657-745-8765 Social Security Number:546372819 Monthly Payment:5500 Is he a excellent performer(Y/N): Manager Information Added Successfully..!

Choose operation 1. Enter Technician Details. 2. Enter Engineer Details. 3. Enter Manager Details. 4. Display Annual Payment Information. 5. Exit. 4 First Name Joy Last Name: Wilson Address: Detroit Telephone Number : 123-234-3456 Social Security Number : 192837465 Annual Salary :24000.0 Over-Time Payment :100.0 TotalTax :4820.0 Total Payment :19280.0 Payment Information : 19280.0 First Name Serena Last Name Perry Address: Rosewoods Telephone Number : 987-876-765*4 Social Security Number: 918273645 Annual Salary :42000.0 TotalTax:8400.0 Total Payment :33600.0 Payment Information : 33600.0 First Name Austin Last Name: Moore Address : Seattle Telephone Number : 657-745-876!5 Social Security Number : 546372819 Annual Salary :66000.0 Total Bonus:1980.0 TotalTax 13596.0 Total Payment :54384.0 Payment Information : 54384.0

Choose operation: 1. Enter Technician Details. 2. Enter Engineer Details. 3. Enter Manager Details. 4. Display Annual Payment Information. 5. Exit Exiting System....!