Barnhill Fastener Company runs a small factory. The company employs workers who

Question

Barnhill Fastener Company runs a small factory. The company employs workers who are paid one of three hourly rates depending on skill level:

Skill Level Hourly Pay Rate ($)

1=17.00

2=20.00

3=22.00

Each factory worker might work any number of hours per week; any hours over 40 are paid at one and one-half times the usual rate. In addition, workers in skill levels 2 and 3 can elect the following insurance options:

Option Explanation Weekly Cost to Employee ($)

1=Medical insurance 32.50

2=Dental insurance 20.00

3=Long-term disability insurance 10.00

Also, workers in skill level 3 can elect to participate in the retirement plan at 3% of their gross pay.

Write an interactive Java payroll application that calculates the net pay for a factory worker.

Use a do...while() loop to ask the user for their skill level. Keep looping until a valid skill level is provided.

The program prompts the userfor  hours worked, as well as appropriate insurance and retirement options for the employee

Explanation / Answer

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import java.util.*;
import javax.swing.*;
import java.lang.*;
import java.util.Scanner;
public class PayDemo
{
public static void main(String[] args)
{int in;
int skillLevel;
int hoursWorked;
int insuranceOption1;
int insuranceOption2;
int insuranceOption3;
int retirementPlan;
skillLevel = 0;
hoursWorked = 0;
insuranceOption1 = 0;
insuranceOption2 = 0;
insuranceOption3 = 0;
retirementPlan = 0;
Scanner input = new Scanner(System.in);
do
{
   System.out.print("Enter skill level of an employee (1/2/3):");
   skillLevel = input.nextInt();
   if(skillLevel<1||skillLevel>3)
       System.out.println("must be 1, 2 or 3");
   }while(skillLevel<1||skillLevel>3);
System.out.print("Enter hours worked: ");
hoursWorked=input.nextInt();
if(skillLevel == 2 || skillLevel == 3)
{
in= JOptionPane.showConfirmDialog(null,
    "Do you want medical insurance?",null, JOptionPane.YES_NO_OPTION);
if(in==JOptionPane.YES_OPTION)
      insuranceOption1=1;
in= JOptionPane.showConfirmDialog(null,
    "Do you want Dental insurance?",null, JOptionPane.YES_NO_OPTION);
if(in==JOptionPane.YES_OPTION)
      insuranceOption2=1;
in= JOptionPane.showConfirmDialog(null,
    "Do you want Disability?",null, JOptionPane.YES_NO_OPTION);
if(in==JOptionPane.YES_OPTION)
      insuranceOption3=1;
     
}
if(skillLevel == 3)
{
System.out.print("Enter 1 for retirement plan or enter 0: ");
retirementPlan = input.nextInt();
}
Pay pay= new Pay(skillLevel, hoursWorked, insuranceOption1, insuranceOption2, insuranceOption3, retirementPlan);
pay.displayEmployeeDetails();
}
}

----------------------------------------------

public class Pay
{
private final int REGULAR_HOURS =40;
private int skillLevel;
private int hoursWorked;
private int insuranceOption1;
private int insuranceOption2;
private int insuranceOption3;
private int retirementPlan;
private double hourlyPayRate;
private double regularPay;
private int overtimeHoursWorked;
private double overtimePay;
private double grossPay;
private double deductions;
private double insuranceCost;
private double retirementCost;
private double netPay;
public Pay(int newSkillLevel, int newHoursWorked, int NewInsuranceOption1, int NewInsuranceOption2, int NewInsuranceOption3, int newRetirementPlan)
{
skillLevel = newSkillLevel;
hoursWorked = newHoursWorked;
insuranceOption1 = NewInsuranceOption1;
insuranceOption2 = NewInsuranceOption2;
insuranceOption3 = NewInsuranceOption3;
retirementPlan = newRetirementPlan;
setHourlyPayRate();
setOvertimeHoursWorked();
calculateRegularPay();
calculateOvertimePay();
calculateGrossPay();
setInsuranceCost();
setRetirementCost();
calculateDeductions();
calculateNetPay();
}
private void setHourlyPayRate()
{
switch(skillLevel)
{
case 1:
hourlyPayRate = 17.00;
break;
case 2:
hourlyPayRate = 20.00;
break;
case 3:
hourlyPayRate = 22.00;
break;
default:
hourlyPayRate = 0.0;
}
}
private void setOvertimeHoursWorked()
{
if(hoursWorked > REGULAR_HOURS)
     overtimeHoursWorked = hoursWorked - REGULAR_HOURS;
else
     overtimeHoursWorked = 0;
}
private void calculateRegularPay()
{
if(hoursWorked > 40)
      regularPay = REGULAR_HOURS * hourlyPayRate;
else
       regularPay = hoursWorked * hourlyPayRate;
}
private void calculateOvertimePay()
{overtimePay=overtimeHoursWorked*(hourlyPayRate*1.5);
}
private void calculateGrossPay()
{
grossPay = regularPay + overtimePay;
}
private void setInsuranceCost()
{
insuranceCost= 0.0;
if(insuranceOption1 == 1)
insuranceCost += 32.50;
if(insuranceOption2 == 1)
insuranceCost += 20.00;
if(insuranceOption3 == 1)
insuranceCost += 10.00;
}
private void setRetirementCost()
{
if(retirementPlan == 1)
retirementCost = grossPay * 3./100.;
else
retirementCost = 0;
}
private void calculateDeductions()
{
deductions = insuranceCost + retirementCost;
if(deductions > grossPay)
deductions = 0;
}
private void calculateNetPay()
{
netPay = grossPay - deductions;
}
public void displayEmployeeDetails()
{
System.out.println(" Employee details...");
System.out.println("Hours worked: " + hoursWorked);
System.out.println("Hourly pay rate: " + hourlyPayRate);
System.out.println("Regular pay: " + regularPay);
System.out.println("Overtime pay: " + overtimePay);
System.out.println("Gross pay: " + grossPay);
if(deductions > grossPay)
System.out.println("Error: the deductions exceed the gross pay, so deductions set to 0.");
else
System.out.println("Total deductions: " + deductions);
System.out.println("Net pay: " + netPay);
}
}

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