Question

Create a GUI application in C# that calculates and displays the total travel expenses of a business person on a trip. Here is the information that the user must provide:

• Number of days on the trip

• Amount of airfare, if any

• Amount of car rental fees, if any

• Number of miles driven, if a private vehicle was used

• Amount of parking fees, if any

• Amount of taxi charges, if any

• Conference or seminar registration fees, if any

• Lodging charges, per night

The company reimburses travel expenses according to the following policy:

• $37 per day for meals

• Parking fees, up to $10.00 per day

• Taxi charges up to $20.00 per day

• Lodging charges up to $95.00 per day

• If a private vehicle is used, $0.27 per mile driven.

The application should calculate and display the following:

• Total expenses incurred by the businessperson

• The total allowable expenses for the trip

• The excess that must be paid by the businessperson, if any

• The amount saved by the businessperson if the expenses were under the total allowed

Answer 1

Here is the code and please let me know if any errors occurs.

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

import javax.swing.JOptionPane;

import java.text.DecimalFormat;

public class TravelExpenses extends JFrame

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{

private JPanel travelInfoPanel;

private JPanel buttonPanel;

private JLabel numDaysOnTripLabel;

private JLabel amountAirfairLabel;

private JLabel amountCarRentalLabel;

private JLabel milesDrivenLabel;

private JLabel parkingFeesLabel;

private JLabel taxiFeesLabel;

private JLabel confRegLabel;

private JLabel lodgingChargesPerNightLabel;

private JTextField numDaysOnTripTextField;

private JTextField amountAirfairTextField;

private JTextField amountCarRentalTextField;

private JTextField milesDrivenTextField;

private JTextField parkingFeesTextField;

private JTextField taxiFeesTextField;

private JTextField confRegTextField;

private JTextField lodgingChargesPerNightTextField;

private JButton resetButton;

private JButton calcButton;

private double mealsAmount = 37.00;

private double parkingFeesReimbursed = 10.00;

private double taxiChargesReimbursed = 20.00;

private double lodgingChargesReimbursed = 95.00;

private double prVechiclePerMileReimbursed = 0.27;

public TravelExpenses()

{

super("Travel Expenses");

setLocationRelativeTo(null);

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

setLayout(new BorderLayout());

buildTravelInfoPanel();

buildButtonPanel();

add(travelInfoPanel, BorderLayout.CENTER);

add(buttonPanel, BorderLayout.SOUTH);

pack();

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setVisible(true);

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}

private void buildTravelInfoPanel()

{

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: ");

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);

travelInfoPanel = new JPanel();

travelInfoPanel.setLayout(new GridLayout(10, 2));

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);

travelInfoPanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 1, 10));

private void buildButtonPanel()

calcButton = new JButton("Calculate");

calcButton.addActionListener(new CalcButtonListener());

resetButton = new JButton("Reset");

buttonPanel = new JPanel();

buttonPanel.setLayout(new BorderLayout(5, 5));

buttonPanel.add(resetButton, BorderLayout.WEST);

buttonPanel.add(calcButton, BorderLayout.CENTER);

buttonPanel.setBorder(BorderFactory.createEmptyBorder(1, 10, 10, 10));

}

private class CalcButtonListener implements ActionListener

{

String input;

int days;

double air;

double carRental;

double miles;

double parking;

double taxi;

double confReg;

double lodging;

double mealsAmount;

public void actionPerformed(ActionEvent e)

{

double actualExpenses;

double milesExpenses;

double allowableExpenses;

double excessAir;

double excessCarRental;

double excessParking;

double excessTaxi;

double excessLodging;

double excessAmountTotal;

double amountSaved;

double paidBackAmount;

DecimalFormat dollar = new DecimalFormat("$#,##0.00");

}

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());

}

private void determineActualExpenses(double actualExpenses, double milesExpenses)

{

actualExpenses = air + carRental + parking + taxi + confReg + lodging;actualExpenses = actualExpenses + milesExpenses;

JOptionPane.showMessageDialog(null, "Total expenses: " + "\n" +"Allowable expenses: " + "\n" +"\n" + "Amount to be paid back: ");

}

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("");

}

}

}

public static void main(String[] args)

{

new TravelExpenses();

}

THANK YOU!! PLEASE VOTE