The vehicle registration department for the State of Florida is becoming decentr

Question

The vehicle registration department for the State of Florida is becoming decentralized. Each county will now handle its own registration process and will issue its own license plates. However, there needs to be some centralized checking so that counties do not duplicate license plate design yet are still distinguished from other counties. Counties also need to notify each other if an address listed for registration is not within their county but is within another county to check for fraud and tax evasion. Additionally they must maintain employment records to assist the court collection division of the state. So while there is all the traditional information that must be kept for vehicle registration there is also information that must be maintained for other state purposes. A consulting firm has narrowed the choice of programming language to Java and C#. Which language do you think would be more appropriate for this application and why?

Explanation / Answer

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.JOptionPane;
import java.text.DecimalFormat;

/**
* The TravelExpense class creates the GUI for the
* Travel Expenses application.
*/

public class TravelExpenses extends JFrame
{
// The following variables will reference the
// custom panel objects
private JPanel travelInfoPanel; // TravelInfo panel
private JPanel buttonPanel; // Buttons panel

// Labels for the Travel Information fields.
private JLabel numDaysOnTripLabel;
private JLabel amountAirfairLabel;
private JLabel amountCarRentalLabel;
private JLabel milesDrivenLabel;
private JLabel parkingFeesLabel;
private JLabel taxiFeesLabel;
private JLabel confRegLabel;
private JLabel lodgingChargesPerNightLabel;

// Text Fields for Travel Information entry
private JTextField numDaysOnTripTextField;
private JTextField amountAirfairTextField;
private JTextField amountCarRentalTextField;
private JTextField milesDrivenTextField;
private JTextField parkingFeesTextField;
private JTextField taxiFeesTextField;
private JTextField confRegTextField;
private JTextField lodgingChargesPerNightTextField;

// Buttons
private JButton resetButton;
private JButton calcButton;

// 5 required constants
private double mealsAmount = 37.00; // Meals amount reimbursed by company per day.
private double parkingFeesReimbursed = 10.00; // Parking Fees amount reimbursed by company per day.
private double taxiChargesReimbursed = 20.00; // Taxi Charges amount reimbursed by company per day.
private double lodgingChargesReimbursed = 95.00; // Lodging Charges amount reimbursed by company per day.
private double prVechiclePerMileReimbursed = 0.27; // Private Vehicle per miles reimbursment rate.

/**
* Constructor
*/

public TravelExpenses()
{
// Call the JFrame constructor & set the title.
super("Travel Expenses");

// Set the main window to open in the center of the screen.
setLocationRelativeTo(null);

// Specify an action for the close button.
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

// Create a BorderLayout manager for the content pane.
setLayout(new BorderLayout());

// Build the TravelInfo and Buttons panels
buildTravelInfoPanel();
buildButtonPanel();

// Add the panels to the frame's content pane
add(travelInfoPanel, BorderLayout.CENTER);
add(buttonPanel, BorderLayout.SOUTH);

// Pack the contents of the window and display it.
pack();
setVisible(true);
}

// The buildTravelInfoPanel method adds the labels and text fiels to the TravelInfo panel.

private void buildTravelInfoPanel()
{
// Create the labels for TravelInfo fields
numDaysOnTripLabel = new JLabel("Number of days on trip: ");
amountAirfairLabel = new JLabel("Amount of airfair: ");
amountCarRentalLabel = new JLabel("Amount of car rental: ");
milesDrivenLabel = new JLabel("Miles driven: ");
parkingFeesLabel = new JLabel("Parking Fees: ");
taxiFeesLabel = new JLabel("Taxi fees: ");
confRegLabel = new JLabel("Conference registration: ");
lodgingChargesPerNightLabel = new JLabel("Lodging charges per night: ");

// Create the text boxes for TravelInfo user input
numDaysOnTripTextField = new JTextField(3);
amountAirfairTextField = new JTextField(8);
amountCarRentalTextField = new JTextField(8);
milesDrivenTextField = new JTextField(4);
parkingFeesTextField = new JTextField(6);
taxiFeesTextField = new JTextField(6);
confRegTextField = new JTextField(8);
lodgingChargesPerNightTextField = new JTextField(6);

// Create a panel to hold labels and text fields.
travelInfoPanel = new JPanel();

// Create GridLayout manager with 10 rows and 2 columns.
travelInfoPanel.setLayout(new GridLayout(10, 2));

// Add the 8 labels and 8 text fields to this panel.
travelInfoPanel.add(numDaysOnTripLabel);
travelInfoPanel.add(numDaysOnTripTextField);
travelInfoPanel.add(amountAirfairLabel);
travelInfoPanel.add(amountAirfairTextField);
travelInfoPanel.add(amountCarRentalLabel);
travelInfoPanel.add(amountCarRentalTextField);
travelInfoPanel.add(milesDrivenLabel);
travelInfoPanel.add(milesDrivenTextField);
travelInfoPanel.add(parkingFeesLabel);
travelInfoPanel.add(parkingFeesTextField);
travelInfoPanel.add(taxiFeesLabel);
travelInfoPanel.add(taxiFeesTextField);
travelInfoPanel.add(confRegLabel);
travelInfoPanel.add(confRegTextField);
travelInfoPanel.add(lodgingChargesPerNightLabel);
travelInfoPanel.add(lodgingChargesPerNightTextField);

// Add an empty border around the panel for spacing.
travelInfoPanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 1, 10));
}

/**
* The buildButtonPanel method creates and adds the Reset and Calculate
* buttons to the TravelExpense panel as its own panel.
*/
private void buildButtonPanel()
{
// Create the calcButton.
calcButton = new JButton("Calculate");

// Register an event listener for the calcButton.
calcButton.addActionListener(new CalcButtonListener());

//Create the resetButton.
resetButton = new JButton("Reset");

// Register an event listener for the resetButton.
//resetButton.addActionListener(new ResetButtonListener());

// Create the Buttons panels.
buttonPanel = new JPanel();

// Create BorderLayout manager.
buttonPanel.setLayout(new BorderLayout(5, 5));

// Add the two buttons to the buttonPanel.
buttonPanel.add(resetButton, BorderLayout.WEST);
buttonPanel.add(calcButton, BorderLayout.CENTER);

// Add an empty border around the panel for spacing.
buttonPanel.setBorder(BorderFactory.createEmptyBorder(1, 10, 10, 10));
}

/**
* Private inner class that handles the event when the user clicks
* the Calculate button .
*/

private class CalcButtonListener implements ActionListener
{
// Declare variables used in calculations.
String input; // To hold the users input
int days; // Number of days on trip entered
double air; // Amount for airfair
double carRental; // Amount of car rental
double miles; // Miles driven
double parking; // Parking fees
double taxi; // Taxi fees
double confReg; // Conference Registration charges
double lodging; // Lodging charges per night
double mealsAmount;

public void actionPerformed(ActionEvent e)
{
//Declare variables for calculated items.
double actualExpenses;
double milesExpenses;
double allowableExpenses;
double excessAir;
double excessCarRental;
double excessParking;
double excessTaxi;
double excessLodging;
double excessAmountTotal;
double amountSaved;
double paidBackAmount;

// Create a DecimalFormat object to format the totals as dollar amounts.
DecimalFormat dollar = new DecimalFormat("$#,##0.00");

// Get Input Data the user entered in the text fields.
private void getData()
{
days = Integer.parseInt(numDaysOnTripTextField.getText());
air = Double.parseDouble(amountAirfairTextField.getText());
carRental = Double.parseDouble(amountCarRentalTextField.getText());
miles = Double.parseDouble(milesDrivenTextField.getText());
parking = Double.parseDouble(parkingFeesTextField.getText());
taxi = Double.parseDouble(taxiFeesTextField.getText());
confReg = Double.parseDouble(confRegTextField.getText());
lodging = Double.parseDouble(lodgingChargesPerNightTextField.getText());
}


// Determine actualExpenses method.
private double determineActualExpenses()
{
actualExpenses = air + carRental + parking + taxi + confReg + lodging + milesExpenses;
// need to calculate milesExpense = miles * prVechiclePerMileReimbursed (??)

// Calculate the allowableExpenses.

// Calculate the paidBackAmount.



// Display the Totals message box.
JOptionPane.showMessageDialog(null, "Total expenses: " + " " +
"Allowable expenses: " + " " +
" " + "Amount to be paid back: ");
}
}

/**
* Private inner class that handles the event when the user clicks
* the Reset button .
*/

private class ResetButtonListener implements ActionListener
{
public void actionPerformed(ActionEvent e)

numDaysOnTripTextField.setText("");
amountAirfairTextField.setText("");
amountCarRentalTextField.setText("");
milesDrivenTextField.setText("");
parkingFeesTextField.setText("");
taxiFeesTextField.setText("");
confRegTextField.setText("");
lodgingChargesPerNightTextField.setText("");
}

// The main method creates an instance of the TravelExpenses class.
public static void main(String[] args)
{
new TravelExpenses();
}
}

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