Travel Expenses (Java)

Create a GUI application that calculates and displays the total 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 feeds, 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 fees, up to $20.00 per day

Lodging charges, up to $95.00 per day

If a private vehicle is used, $0.27 per mile

The application should calculate and display the following:

Total expenses incurred by the business person

The total allowable expenses for the trip

The excess that must be paid by the business person, if any

The amount saved by the business person if the expenses are under the total allowed

TravelExpenses.java

import javax.swing.*; import java.awt.event.*;

public class travelexpenses extends JFrame { private final double MEALS = 37.00; private final double PARKING = 10.00; private final double TAXI = 20.00; private final double LODGING = 95.00; private final double OWNCAR = .27; private final int WINDOW_WIDTH = 500; private final int WINDOW_HEIGHT = 500; private JPanel panel; private JButton button; private JLabel days; private JLabel airfare; private JLabel rentalcar; private JLabel privatecar; private JLabel parkfees; private JLabel taxicharges; private JLabel semcharges; private JLabel hotelcharges; private JTextField days1; private JTextField airfare1; private JTextField rentalcar1; private JTextField privatecar1; private JTextField parkfees1; private JTextField taxicharges1; private JTextField semcharges1; private JTextField hotelcharges1;

public travelexpenses() { setTitle("Travel Expenses Calculator"); setSize(WINDOW_WIDTH, WINDOW_HEIGHT); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); buildPanel(); add(panel); setVisible(true); }

private void buildPanel() { days = new JLabel("How many days are you staying?"); days1 = new JTextField(3); airfare = new JLabel("How much did you spend on airfare?"); airfare1 = new JTextField(10); rentalcar = new JLabel("How much did you spend on a car rental? "); rentalcar1 = new JTextField(10); privatecar = new JLabel("How much mileage was used on your car?"); privatecar1 = new JTextField(10); parkfees = new JLabel("How much in parking fees did you pay?"); parkfees1 = new JTextField(10); taxicharges = new JLabel("How much did you spend on taxi's?"); taxicharges1 = new JTextField(10); semcharges = new JLabel("How much did you spend on seminars?"); semcharges1 = new JTextField(10); hotelcharges = new JLabel("How much did you spend on the hotel?"); hotelcharges1 = new JTextField(10); button = new JButton("Calculate."); button.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { int day; double air; double rentacar; double owncar; double parking; double taxi; double seminar; double hotel; double total; double adjusted; double newtotal; double moneysaved; double moneyowed;

day = Integer.parseInt(days1.getText()); air = Double.parseDouble(airfare1.getText()); rentacar = Double.parseDouble(rentalcar1.getText()); owncar = Double.parseDouble(privatecar1.getText()); parking = Double.parseDouble(parkfees1.getText()); taxi = Double.parseDouble(taxicharges1.getText()); seminar = Double.parseDouble(semcharges1.getText()); hotel = Double.parseDouble(hotelcharges1.getText()); total = air + rentacar + owncar + parking + taxi + seminar + hotel; adjusted = day*MEALS + day*PARKING + day*TAXI + day*LODGING + owncar*OWNCAR; newtotal = total - adjusted; if(total > newtotal) moneyowed = total - newtotal; if(total < newtotal) moneysaved = } } ); panel = new JPanel();

panel.add(days); panel.add(days1); panel.add(airfare); panel.add(airfare1); panel.add(rentalcar); panel.add(rentalcar1); panel.add(privatecar); panel.add(privatecar1); panel.add(parkfees); panel.add(parkfees1); panel.add(taxicharges); panel.add(taxicharges1); panel.add(semcharges); panel.add(semcharges1); panel.add(hotelcharges); panel.add(hotelcharges1); panel.add(button); } }