Having trouble turning Java application into applet
here is the regular application:
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.text.DecimalFormat;
publicclass TravelExpensesextends JFrameimplements ActionListener{
private JPanel iPanel;// To hold a text field
private JPanel buttonPanel;// To hold a button
private JTextField days, airfare, carRental, milesDriven, parkingFees, taxiCharges, confrenceFees, lodgingCharges, expenses, excess, saved;
private JLabel message1, message2, message3, message4, message5, message6, message7, message8, message9, message10, message11, message12, message13, message14, message15, message16, message17;
private JButton YesButton, YesButton2, YesButton3, YesButton4, YesButton5, YesButton6;
public TravelExpenses(){
setTitle("Travel Expense Calculator");
setSize(900, 700);
buildIpanel();
// buildCpanel();
buildButtonPanel();
setLayout(new BorderLayout());
//Add the panels to the content pane.
add(iPanel,BorderLayout.CENTER);
add(buttonPanel, BorderLayout.SOUTH);
setVisible(true);
}
privatevoid buildIpanel()
{
iPanel =new JPanel();
iPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
message1 =new JLabel("Number of days on the trip: ");
days =new JTextField(10);
days.setText("0");
message2 =new JLabel("Did you have any airfare?");
YesButton =new JButton("Yes");
YesButton.addActionListener(this);
message3 =new JLabel("Please enter the amount of airfare: ");
message3.setVisible(false);
airfare =new JTextField(10);
airfare.setVisible(false);
airfare.setText("0");
message4 =new JLabel("Did you have any car rental fees?");
YesButton2 =new JButton("Yes");
YesButton2.addActionListener(this);
message5 =new JLabel("Please enter the amount of car rental fees: ");
message5.setVisible(false);
carRental =new JTextField(10);
carRental.setVisible(false);
carRental.setText("0");
message6 =new JLabel("Did you use a private vehicle?");
YesButton3 =new JButton("Yes");
YesButton3.addActionListener(this);
message7 =new JLabel("Please enther the number of miles driven: ");
message7.setVisible(false);
milesDriven =new JTextField(10);
milesDriven.setVisible(false);
milesDriven.setText("0");
message8 =new JLabel("Did you have any parking fees?");
YesButton4 =new JButton("Yes");
YesButton4.addActionListener(this);
message9 =new JLabel("Please enter the amount of parking fees: ");
message9.setVisible(false);
parkingFees =new JTextField(10);
parkingFees.setVisible(false);
parkingFees.setText("0");
message10 =new JLabel("Did you have any taxi charges?");
YesButton5 =new JButton("Yes");
YesButton5.addActionListener(this);
message11 =new JLabel("Please enter the amount of taxi charges: ");
message11.setVisible(false);
taxiCharges =new JTextField(10);
taxiCharges.setVisible(false);
taxiCharges.setText("0");
message12 =new JLabel("Did you have any conference or seminar registration fees?");
YesButton6 =new JButton("Yes");
YesButton6.addActionListener(this);
message13 =new JLabel("Please enter the amount of conference and/or seminar registration fees: ");
message13.setVisible(false);
confrenceFees =new JTextField(10);
confrenceFees.setVisible(false);
confrenceFees.setText("0");
message14 =new JLabel("Please enter the amount of Lodging charges(required): ");
lodgingCharges =new JTextField(10);
message15 =new JLabel("Total expenses incurred: ");
expenses =new JTextField(10);
message16 =new JLabel("Excess amount paid by business person: ");
excess =new JTextField(10);
excess.setVisible(false);
message17 =new JLabel("Amount saved by business person: ");
saved =new JTextField(10);
saved.setVisible(false);
iPanel.setLayout(new GridLayout(17, 2));
// Add the label and text field to the panel.
iPanel.add(message1);
iPanel.add(days);
iPanel.add(message2);
iPanel.add(YesButton);
iPanel.add(message3);
iPanel.add(airfare);
iPanel.add(message4);
iPanel.add(YesButton2);
iPanel.add(message5);
iPanel.add(carRental);
iPanel.add(message6);
iPanel.add(YesButton3);
iPanel.add(message7);
iPanel.add(milesDriven);
iPanel.add(message8);
iPanel.add(YesButton4);
iPanel.add(message9);
iPanel.add(parkingFees);
iPanel.add(message10);
iPanel.add(YesButton5);
iPanel.add(message11);
iPanel.add(taxiCharges);
iPanel.add(message12);
iPanel.add(YesButton6);
iPanel.add(message13);
iPanel.add(confrenceFees);
iPanel.add(message14);
iPanel.add(lodgingCharges);
iPanel.add(message15);
iPanel.add(expenses);
iPanel.add(message16);
iPanel.add(excess);
iPanel.add(message17);
iPanel.add(saved);
setLayout(new BorderLayout());
}
privatevoid buildButtonPanel()
{
// Create the panel.
buttonPanel =new JPanel();
buttonPanel.setLayout(new FlowLayout(FlowLayout.CENTER));
// Create a button with the text "Convert".
JButton CalcButton =new JButton("Calculate");
JButton ExitButton =new JButton("Exit");
// Add an action listener to the button.
CalcButton.addActionListener(new CalcButtonListener());
ExitButton.addActionListener(new ExitButtonListener());
// Add the button to the panel.
buttonPanel.add(CalcButton);
buttonPanel.add(ExitButton);
//setVisible(true);
}
privateclass ExitButtonListenerimplements ActionListener
{
publicvoid actionPerformed(ActionEvent e)
{
System.exit(0);
}
}
privateclass CalcButtonListenerimplements ActionListener
{
publicvoid actionPerformed(ActionEvent e)
{
double totalExpenses, day, account, parking, air,
car, miles, taxi, confrence, lodging, mileExpense;
day = Double.parseDouble(days.getText());
air = Double.parseDouble(airfare.getText());
car = Double.parseDouble(carRental.getText());
miles = Double.parseDouble(milesDriven.getText());
parking = Double.parseDouble(parkingFees.getText());
taxi = Double.parseDouble(taxiCharges.getText());
confrence = Double.parseDouble(confrenceFees.getText());
lodging = Double.parseDouble(lodgingCharges.getText());
// Create a DecimalFormat object to format numbers.
DecimalFormat formatter =new DecimalFormat("0.0");
mileExpense = miles * .27;
totalExpenses = air + car + mileExpense + parking + taxi + confrence + lodging;
account = 37 * day;// $37 for food
if (parking > 10 * day)
{
parking -= 10 * day;
account -= parking;
}
if (taxi > 20 * day)
{
taxi -= 20 * day;
account -= taxi;
}
if (lodging > 95 * day)
{
lodging = lodging - (95 * day);
account = account - lodging;
}
if (account > 0)
{
saved.setVisible(true);
saved.setText(formatter.format(account));
}
if (account < 0)
{
account = Math.abs(account);// Turn the negitave into a positive
excess.setVisible(true);
excess.setText(formatter.format(account));
}
expenses.setText(formatter.format(totalExpenses));
}
}
publicvoid actionPerformed(ActionEvent e){
if (e.getSource().equals(YesButton)){
message3.setVisible(true);
airfare.setVisible(true);
}elseif (e.getSource().equals(YesButton2)){
message5.setVisible(true);
carRental.setVisible(true);
}elseif (e.getSource().equals(YesButton3)){
message7.setVisible(true);
milesDriven.setVisible(true);
}elseif (e.getSource().equals(YesButton4)){
message9.setVisible(true);
parkingFees.setVisible(true);
}elseif (e.getSource().equals(YesButton5)){
message11.setVisible(true);
taxiCharges.setVisible(true);
}elseif (e.getSource().equals(YesButton6)){
message13.setVisible(true);
confrenceFees.setVisible(true);
}
}
publicstaticvoid main(String[] args)
{
TravelExpenses mc =new TravelExpenses();
}
}
and here is the applet - i cant compile it
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.text.DecimalFormat;
publicclass TravelExpenses1extends JApplet{
private JPanel iPanel;// To hold a text field
private JPanel buttonPanel;// To hold a button
private JTextField days, airfare, carRental, milesDriven, parkingFees, taxiCharges, confrenceFees, lodgingCharges, expenses, excess, saved;
private JLabel message1, message2, message3, message4, message5, message6, message7, message8, message9, message10, message11, message12, message13, message14, message15, message16, message17;
private JButton YesButton, YesButton2, YesButton3, YesButton4, YesButton5, YesButton6;
public TravelExpenses1(){
//setTitle("Travel Expense Calculator");
//setSize(900, 700);
buildIpanel();
// buildCpanel();
buildButtonPanel();
//setLayout(new BorderLayout());
//Add the panels to the content pane.
add(iPanel,BorderLayout.CENTER);
add(buttonPanel, BorderLayout.SOUTH);
//setVisible(true);
}
privatevoid buildIpanel()
{
iPanel =new JPanel();
iPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
message1 =new JLabel("Number of days on the trip: ");
days =new JTextField(10);
days.setText("0");
message2 =new JLabel("Did you have any airfare?");
YesButton =new JButton("Yes");
YesButton.addActionListener(this);
message3 =new JLabel("Please enter the amount of airfare: ");
message3.setVisible(false);
airfare =new JTextField(10);
airfare.setVisible(false);
airfare.setText("0");
message4 =new JLabel("Did you have any car rental fees?");
YesButton2 =new JButton("Yes");
YesButton2.addActionListener(this);
message5 =new JLabel("Please enter the amount of car rental fees: ");
message5.setVisible(false);
carRental =new JTextField(10);
carRental.setVisible(false);
carRental.setText("0");
message6 =new JLabel("Did you use a private vehicle?");
YesButton3 =new JButton("Yes");
YesButton3.addActionListener(this);
message7 =new JLabel("Please enther the number of miles driven: ");
message7.setVisible(false);
milesDriven =new JTextField(10);
milesDriven.setVisible(false);
milesDriven.setText("0");
message8 =new JLabel("Did you have any parking fees?");
YesButton4 =new JButton("Yes");
YesButton4.addActionListener(this);
message9 =new JLabel("Please enter the amount of parking fees: ");
message9.setVisible(false);
parkingFees =new JTextField(10);
parkingFees.setVisible(false);
parkingFees.setText("0");
message10 =new JLabel("Did you have any taxi charges?");
YesButton5 =new JButton("Yes");
YesButton5.addActionListener(this);
message11 =new JLabel("Please enter the amount of taxi charges: ");
message11.setVisible(false);
taxiCharges =new JTextField(10);
taxiCharges.setVisible(false);
taxiCharges.setText("0");
message12 =new JLabel("Did you have any conference or seminar registration fees?");
YesButton6 =new JButton("Yes");
YesButton6.addActionListener(this);
message13 =new JLabel("Please enter the amount of conference and/or seminar registration fees: ");
message13.setVisible(false);
confrenceFees =new JTextField(10);
confrenceFees.setVisible(false);
confrenceFees.setText("0");
message14 =new JLabel("Please enter the amount of Lodging charges(required): ");
lodgingCharges =new JTextField(10);
message15 =new JLabel("Total expenses incurred: ");
expenses =new JTextField(10);
message16 =new JLabel("Excess amount paid by business person: ");
excess =new JTextField(10);
excess.setVisible(false);
message17 =new JLabel("Amount saved by business person: ");
saved =new JTextField(10);
saved.setVisible(false);
iPanel.setLayout(new GridLayout(17, 2));
// Add the label and text field to the panel.
iPanel.add(message1);
iPanel.add(days);
iPanel.add(message2);
iPanel.add(YesButton);
iPanel.add(message3);
iPanel.add(airfare);
iPanel.add(message4);
iPanel.add(YesButton2);
iPanel.add(message5);
iPanel.add(carRental);
iPanel.add(message6);
iPanel.add(YesButton3);
iPanel.add(message7);
iPanel.add(milesDriven);
iPanel.add(message8);
iPanel.add(YesButton4);
iPanel.add(message9);
iPanel.add(parkingFees);
iPanel.add(message10);
iPanel.add(YesButton5);
iPanel.add(message11);
iPanel.add(taxiCharges);
iPanel.add(message12);
iPanel.add(YesButton6);
iPanel.add(message13);
iPanel.add(confrenceFees);
iPanel.add(message14);
iPanel.add(lodgingCharges);
iPanel.add(message15);
iPanel.add(expenses);
iPanel.add(message16);
iPanel.add(excess);
iPanel.add(message17);
iPanel.add(saved);
setLayout(new BorderLayout());
}
privatevoid buildButtonPanel()
{
// Create the panel.
buttonPanel =new JPanel();
buttonPanel.setLayout(new FlowLayout(FlowLayout.CENTER));
// Create a button with the text "Convert".
JButton CalcButton =new JButton("Calculate");
JButton ExitButton =new JButton("Exit");
// Add an action listener to the button.
CalcButton.addActionListener(new CalcButtonListener());
ExitButton.addActionListener(new ExitButtonListener());
// Add the button to the panel.
buttonPanel.add(CalcButton);
buttonPanel.add(ExitButton);
//setVisible(true);
}
privateclass ExitButtonListenerimplements ActionListener
{
publicvoid actionPerformed(ActionEvent e)
{
System.exit(0);
}
}
privateclass CalcButtonListenerimplements ActionListener
{
publicvoid actionPerformed(ActionEvent e)
{
double totalExpenses, day, account, parking, air,
car, miles, taxi, confrence, lodging, mileExpense;
day = Double.parseDouble(days.getText());
air = Double.parseDouble(airfare.getText());
car = Double.parseDouble(carRental.getText());
miles = Double.parseDouble(milesDriven.getText());
parking = Double.parseDouble(parkingFees.getText());
taxi = Double.parseDouble(taxiCharges.getText());
confrence = Double.parseDouble(confrenceFees.getText());
lodging = Double.parseDouble(lodgingCharges.getText());
// Create a DecimalFormat object to format numbers.
DecimalFormat formatter =new DecimalFormat("0.0");
mileExpense = miles * .27;
totalExpenses = air + car + mileExpense + parking + taxi + confrence + lodging;
account = 37 * day;// $37 for food
if (parking > 10 * day)
{
parking -= 10 * day;
account -= parking;
}
if (taxi > 20 * day)
{
taxi -= 20 * day;
account -= taxi;
}
if (lodging > 95 * day)
{
lodging = lodging - (95 * day);
account = account - lodging;
}
if (account > 0)
{
saved.setVisible(true);
saved.setText(formatter.format(account));
}
if (account < 0)
{
account = Math.abs(account);// Turn the negitave into a positive
excess.setVisible(true);
excess.setText(formatter.format(account));
}
expenses.setText(formatter.format(totalExpenses));
}
}
publicvoid actionPerformed(ActionEvent e){
if (e.getSource().equals(YesButton)){
message3.setVisible(true);
airfare.setVisible(true);
}elseif (e.getSource().equals(YesButton2)){
message5.setVisible(true);
carRental.setVisible(true);
}elseif (e.getSource().equals(YesButton3)){
message7.setVisible(true);
milesDriven.setVisible(true);
}elseif (e.getSource().equals(YesButton4)){
message9.setVisible(true);
parkingFees.setVisible(true);
}elseif (e.getSource().equals(YesButton5)){
message11.setVisible(true);
taxiCharges.setVisible(true);
}elseif (e.getSource().equals(YesButton6)){
message13.setVisible(true);
confrenceFees.setVisible(true);
}
}
}
