Languages homework help. Hi I am still looking for assistance with the below question.Create a help or directions feature to:Explain how to use the features of the program.Implement the use of a method with no parameters for this feature.Modify the calculation of the total trip amount to use a method with a single parameter.Implement the use of a class and create object for each travel request.Implement at least one occurrence of exception handling.——————————————————————————————————————————————–import java.awt.event.ActionEvent;import java.awt.event.ItemEvent;import java.awt.event.ItemListener;import javax.swing.ButtonGroup;import javax.swing.DefaultComboBoxModel;import javax.swing.JComboBox;import javax.swing.JPanel;import javax.swing.JRadioButton;public class NewJFrame2 extends javax.swing.JFrame {public NewJFrame2() { initComponents();}@SuppressWarnings(“unchecked”)private void initComponents() { // Create the labels using Java Swing label1 = new java.awt.Label(); label2 = new java.awt.Label(); label3 = new java.awt.Label(); label4 = new java.awt.Label(); label5 = new java.awt.Label(); label6 = new java.awt.Label(); jTextField1 = new javax.swing.JTextField(); jTextField2 = new javax.swing.JTextField(); jTextField3 = new javax.swing.JTextField(); jTextField4 = new javax.swing.JTextField(); jTextField5 = new javax.swing.JTextField(); jTextField6 = new javax.swing.JTextField(); jButton1 = new javax.swing.JButton(); label7 = new java.awt.Label(); labelCity = new java.awt.Label(); // combo box for five different locations jComboBoxCity = new JComboBox(); jRadioButtonCarCompany1 = new JRadioButton(); jRadioButtonCarCompany2 = new JRadioButton(); jRadioButtonCarCompany3 = new JRadioButton(); buttonGroupCarCompanies = new ButtonGroup(); jPanel = new JPanel(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); cities = new String[]{“New York”, “New Orleans”, “Denver”, “Seattle”, “Dallas”}; foodCosts = new int[]{70, 80, 85, 90, 95}; // assign label text and button listening event label1.setText(“Traveler name “); label2.setText(“Airfare cost “); label3.setText(“Food cost “); label4.setText(“Car cost “); label5.setText(“Hotel cost “); label6.setText(“Shuttle cost “); labelCity.setText(“Location”); jButton1.setText(“Calculation Total”); jRadioButtonCarCompany1.setText(“AAA”); jRadioButtonCarCompany2.setText(“Hertz”); jRadioButtonCarCompany3.setText(“Enterprise”); buttonGroupCarCompanies.add(jRadioButtonCarCompany1); buttonGroupCarCompanies.add(jRadioButtonCarCompany2); buttonGroupCarCompanies.add(jRadioButtonCarCompany3); jButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); jComboBoxCity.addItemListener(new ItemListener() { @Override public void itemStateChanged(ItemEvent e) { // Auto-generated method stub cmbCityActionPerformed(e); } }); // populate combo box jComboBoxCity.setModel(new DefaultComboBoxModel(cities)); // Item changed event is no longer triggered on populate // now manually firing it to ensure Food Textbox is populated with the // corrresponding cost jComboBoxCity.setSelectedIndex(1); jComboBoxCity.setSelectedIndex(0); // Added layout for Label and Radio buttons in one panel. javax.swing.GroupLayout myl = new javax.swing.GroupLayout(jPanel); myl.setAutoCreateGaps(true); myl.setAutoCreateContainerGaps(true); myl.setVerticalGroup(myl.createSequentialGroup().addComponent(label5).addComponent(jRadioButtonCarCompany1) .addComponent(jRadioButtonCarCompany2).addComponent(jRadioButtonCarCompany3)); javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); getContentPane().setLayout(layout); layout.setHorizontalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addGap(123, 123, 123) .addComponent(label7, javax.swing.GroupLayout.PREFERRED_SIZE, 409, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGroup(layout.createSequentialGroup() .addContainerGap() .addGroup(layout .createParallelGroup(javax.swing.GroupLayout.Alignment.CENTER) .addComponent(label6, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(label1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(label2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) // replaced label5 with jPanel that holds the label together // with radio buttons .addComponent(jPanel, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jButton1) .addComponent(label3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(labelCity, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(label4, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGap(179, 179, 179) .addGroup(layout .createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 184, javax.swing.GroupLayout.PREFERRED_SIZE) .addGroup(layout .createParallelGroup( javax.swing.GroupLayout.Alignment.TRAILING, false) .addComponent(jTextField6, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 70, Short.MAX_VALUE) .addComponent(jTextField5, javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jTextField4, javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jTextField3, javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jComboBoxCity, javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jTextField2, javax.swing.GroupLayout.Alignment.LEADING))))) .addGap(179, 179, 179) .addContainerGap(123, Short.MAX_VALUE)) ); layout.setVerticalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(label1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGap(21, 21, 21) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(label2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGap(30, 30, 30) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(label3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGap(29, 29, 29) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) // replaced label5 with jPanel that holds the label together with radio buttons .addComponent(jPanel, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jTextField4, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGap(26, 26, 26) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(label4, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jTextField5, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGap(23, 23, 23) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(label6, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jTextField6, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGap(23, 23, 23) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(labelCity, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jComboBoxCity, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGap(28, 28, 28) .addComponent(jButton1) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 41, Short.MAX_VALUE) .addComponent(label7, javax.swing.GroupLayout.PREFERRED_SIZE, 121, javax.swing.GroupLayout.PREFERRED_SIZE) .addGap(19, 19, 19)) ); pack();}// update food field to add value based on locationprivate void cmbCityActionPerformed(ItemEvent evt) { int index = jComboBoxCity.getSelectedIndex(); int cost = foodCosts[index]; jTextField3.setText(String.valueOf(cost));}private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { // Declare variables to hold data. Set total to equal data values held in // arfare,food hotel, car and shuttle String Travelername = jTextField1.getText(); double Airfarecost = Double.parseDouble(jTextField2.getText()); double Foodcost = Double.parseDouble(jTextField3.getText()); double Hotelcost = Double.parseDouble(jTextField4.getText()); double Carcost = Double.parseDouble(jTextField5.getText()); double Shuttlecost = Double.parseDouble(jTextField6.getText()); double total = Airfarecost + Foodcost + Hotelcost + Carcost + Shuttlecost; // add ten percent of cost to total value by multiplying total by 0.1 total = total + total * 0.1; label7.setText(“The travel cost is ” + total);}public static void main(String args[]) { try { for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) { if (“Nimbus”.equals(info.getName())) { javax.swing.UIManager.setLookAndFeel(info.getClassName()); break; } } } catch (ClassNotFoundException ex) { java.util.logging.Logger.getLogger(NewJFrame2.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (InstantiationException ex) { java.util.logging.Logger.getLogger(NewJFrame2.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (IllegalAccessException ex) { java.util.logging.Logger.getLogger(NewJFrame2.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (javax.swing.UnsupportedLookAndFeelException ex) { java.util.logging.Logger.getLogger(NewJFrame2.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } java.awt.EventQueue.invokeLater(new Runnable() { public void run() { new NewJFrame2().setVisible(true); } });}private javax.swing.JButton jButton1;private javax.swing.JTextField jTextField1;private javax.swing.JTextField jTextField2;private javax.swing.JTextField jTextField3;private javax.swing.JTextField jTextField4;private javax.swing.JTextField jTextField5;private javax.swing.JTextField jTextField6;private java.awt.Label label1;private java.awt.Label label2;private java.awt.Label label3;private java.awt.Label label4;private java.awt.Label label5;private java.awt.Label label6;private java.awt.Label label7;private java.awt.Label labelCity;private javax.swing.JComboBox jComboBoxCity;private javax.swing.JRadioButton jRadioButtonCarCompany1;private javax.swing.JRadioButton jRadioButtonCarCompany2;private javax.swing.JRadioButton jRadioButtonCarCompany3;private javax.swing.ButtonGroup buttonGroupCarCompanies;private javax.swing.JPanel jPanel;private String[] cities;private int[] foodCosts;}
Languages homework help
