Making Buttons Work...?

Question

I am working on this project with some friends, and am fairly new at Java, so need some help with this. This is my GUI so far...
import javax.swing.*;
import javax.swing.text.*;
import java.text.*;
import java.awt.*;
import java.awt.event.*;
import java.util.Date;
public class CustomerView
     public static void addComponentsToPane(Container pane)
          pane.setLayout(new GridBagLayout());
          GridBagConstraints c = new GridBagConstraints();
          c.fill = GridBagConstraints.HORIZONTAL;
          JLabel tCarModel = new JLabel("Car Model");
          // inserts (top, left, bottom, right)
          c.insets = new Insets(10,40,10,7);
          c.gridx = 0;
          c.gridy = 0;
          pane.add(tCarModel, c);
          // temporary string of Audi Models to go into combobox
          String[] carModels = {"A2", "A3", "A4"};
          JComboBox iCarModel = new JComboBox(carModels);
          c.insets = new Insets(10,10,10,60);
          c.gridx = 1;
          c.gridy = 0;
          pane.add(iCarModel, c);
          JLabel tFirstDayOfRental = new JLabel("First Day of Rental");
          c.insets = new Insets(10,10,10,7);
          c.gridx = 2;
          c.gridy = 0;
          pane.add(tFirstDayOfRental, c);
          JFormattedTextField iFirstDayOfRental = new JFormattedTextField(new SimpleDateFormat("dd/MM/yy"));
          iFirstDayOfRental.setValue(new Date());
          c.insets = new Insets(10,10,10,40);
          c.gridx = 3;
          c.gridy = 0;
          pane.add(iFirstDayOfRental, c);
          JLabel tCarType = new JLabel("Car Type");
          c.insets = new Insets(20,40,10,7);
          c.gridx = 0;
          c.gridy = 1;
          pane.add(tCarType, c);
          // temporary string of Car Types to go into combobox
          String[] carTypes = {"Audi"};
          JComboBox iCarType = new JComboBox(carTypes);
          c.insets = new Insets(20,10,10,60);
          c.gridx = 1;
          c.gridy = 1;
          pane.add(iCarType, c);
          JLabel tNumberOfDays = new JLabel("Number of Days");
          c.insets = new Insets(20,10,10,7);
          c.gridx = 2;
          c.gridy = 1;
          pane.add(tNumberOfDays, c);
          JTextField iNumberOfDays = new JTextField(4);
          c.insets = new Insets(20,10,10,40);
          c.gridx = 3;
          c.gridy = 1;
          pane.add(iNumberOfDays, c);
          JLabel tLicence = new JLabel("Licence");
          c.insets = new Insets(20,40,10,7);
          c.gridx = 0;
          c.gridy = 2;
          pane.add(tLicence, c);
          String[] licence = {"International", "UK Licence"};
          JList iLicence = new JList(licence);
          c.insets = new Insets(20,10,10,60);
          c.gridx = 1;
          c.gridy = 2;
          pane.add(iLicence, c);
          JLabel tTimeOfBooking = new JLabel("Time of Booking");
          c.insets = new Insets(20,10,10,7);
          c.gridx = 2;
          c.gridy = 2;
          pane.add(tTimeOfBooking, c);
          JFormattedTextField iTimeOfBooking = new JFormattedTextField(new SimpleDateFormat("dd/MM/yy:HH:mm"));
          iTimeOfBooking.setValue(new Date());
          c.insets = new Insets(20,10,10,40);
          c.gridx = 3;
          c.gridy = 2;
          pane.add(iTimeOfBooking, c);
          JButton iOK = new JButton("OK");
          c.insets = new Insets(30,10,20,10);
          c.gridwidth = 2;
          c.gridx = 0;
          c.gridy = 3;
          pane.add(iOK, c);
          JButton iCancel = new JButton("Cancel");
          c.insets = new Insets(30,10,20,10);
          c.gridwidth = 2;
          c.gridx = 2;
          c.gridy = 3;
          pane.add(iCancel, c);
     private static void createAndShowGUI()
          // create and set up the window
          JFrame tJFrame = new JFrame("Car Rental Information Systems");
          tJFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          // set up the content pane
          addComponentsToPane(tJFrame.getContentPane());
          // display the window
        tJFrame.pack();
        tJFrame.setVisible(true);
     public static void main(String[] Args)
          // schedule a job for the event-dispatching thread
        // creating and showing this application's GUI.
        javax.swing.SwingUtilities.invokeLater(new Runnable()
            public void run()
                createAndShowGUI();
}I am trying to make the Cancel button close the frame... don't have a clue how to do it though. Any suggestions please?

Answer 1

That was just in response to Michael_Dunn's comment... Again, why waste time with an unnecessary comment that doesn't add anything to solving the problem.
Michael suggested that you need an ActionListener and System.exit();
So your comment should have been "Thanks for the help", at least if you expect to get help in the future!