Question

creat a GUI APPLICATION that calculates and displays the total travel expenses of a business person on a tripmhere is the information that a user provide:-number ofdays on the trip,amount of airfare,amount of car rental fees,if any,number of miles driven,if the private vehicle was used,amount of parking fees,amount of taxicharges,conference or seminar fees,lodging charges per night.The company reimburses trevel expenses according to following policy:$37 per day for meals,parking fees,upto $10 per day,taxi charges up to$ 20.00per week.lodging charges up to $95.00 per day,if a private vehicle is used@.27permile driven,the application should calculateand display the followingtotal expenses incurred by the business person,the total allowable expense for the trip,the expense that paid by the business person,the amount saved by the businessperson if the expenses under total allowed

Answer 1

Dear,

Here is the code

//Header File sectionimport java.awt.*;
import java.awt.event.*;import javax.swing.*;import javax.swing.JOptionPane;import java.text.DecimalFormat;
//Class name declaration
public class TravelExpenses extends JFrame{private JPanel travelInfoPanel;private JPanel buttonPanel;// Labelsprivate JLabel numDaysOnTripLabel;private JLabel amountAirfairLabel;private JLabel amountCarRentalLabel;private JLabel milesDrivenLabel;private JLabel parkingFeesLabel;private JLabel taxiFeesLabel;private JLabel confRegLabel;private JLabel lodgingChargesPerNightLabel; // Text Fieldsprivate JTextField numDaysOnTripTextField;private JTextField amountAirfairTextField;private JTextField amountCarRentalTextField;private JTextField milesDrivenTextField;private JTextField parkingFeesTextField;private JTextField taxiFeesTextField;private JTextField confRegTextField;private JTextField lodgingChargesPerNightTextField;// Buttonsprivate JButton resetButton;private JButton calcButton;// Meals amount reimbursed by company per day.
private double mealsAmount = 37.00;// Parking Fees amount reimbursed by company per day.
private double parkingFeesReimbursed = 10.00;
// Taxi Charges amount reimbursed by company per day.
private double taxiChargesReimbursed = 20.00;// Lodging Charges amount reimbursed by company per day.
private double lodgingChargesReimbursed = 95.00;// Private Vehicle per miles reimbursment rate.
private double prVechiclePerMileReimbursed = 0.27;// Constructor
public TravelExpenses( )
{
//set the title.
super("TRAVEL EXPENSES");
// Set the main window
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 fees: ");
milesDrivenLabel = new JLabel("Number of Miles driven: ");
parkingFeesLabel = new JLabel("Amount of Parking fees: ");
taxiFeesLabel = new JLabel("Amount of Tax charges: ");
confRegLabel = new JLabel("Conference or Seminar registration fees: ");
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
travelInfoPanel.setLayout(new GridLayout(10, 2));
// Add the labels and 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
calcButton.addActionListener(new CalcButtonListener());
//Create the resetButton.
resetButton = new JButton("RESET");
// 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
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)
{
//Declare variables
double actualExpenses;
double milesExpenses;
double allowableExpenses;
double excessAir;
double excessCarRental;
double excessParking;
double excessTaxi;
double excessLodging;
double excessAmountTotal;
double amountSaved=0;
double paidBackAmount=0;
// 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.
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.
milesExpenses = miles * prVechiclePerMileReimbursed;
actualExpenses = (carRental + parking + taxi + lodging +mealsAmount)
*days+air+milesExpenses+ confReg ;
// Calculate the allowableExpenses.
allowableExpenses=(mealsAmount+parkingFeesReimbursed+taxiChargesReimbursed+lodgingChargesReimbursed)*days+milesExpenses+air+confReg;
// Calculate the paidBackAmount.
if(actualExpenses>allowableExpenses)
paidBackAmount=actualExpenses-allowableExpenses;
else
amountSaved=allowableExpenses-actualExpenses;
// Display the Totals message box.
if(paidBackAmount>0)
JOptionPane.showMessageDialog(null, "Total expenses: "
+ dollar.format(actualExpenses)+"n" +"Allowableexpenses: "
+ dollar.format(allowableExpenses)+"n" +"n" + "Amount to be paidback: "
+dollar.format(paidBackAmount));
else if(amountSaved>0)
JOptionPane.showMessageDialog(null, "Total expenses: " + dollar.format(actualExpenses)
+"n" +"Allowable expenses: " + dollar.format(allowableExpenses)+"n" +
"n" + "Amount Saved: "+dollar.format(amountSaved));
else
JOptionPane.showMessageDialog(null, "Total expenses: " + dollar.format(actualExpenses)
+"n" +"Allowable expenses: " + dollar.format(allowableExpenses)+"n" );
}
}
/*** Private inner class that handles the event when the user clicks
* the RESET button .
*/private class ResetButtonListener implements ActionListener
{public void actionPerformed(ActionEvent e){}}// The main method
public static void main(String[] args)
{new TravelExpenses();}}Output:Hope this will help you..