Now change your applet into a frame. You can use the following code:
// Main class that instantiates the frame.
public class OrderFrame
{
public static void main (String [] args)
{
OrderWindow
frame = new OrderWindow ();
frame.addWindowListener
(new WindowCloser ());
frame.show ();
} // main method
} // class ShowFrames
// class to activate the closing icon on the frame.
class WindowCloser extends WindowAdapter
{
public void windowClosing (WindowEvent e){System.exit
(0);}
} // class WindowCloser
// class that creates a frame with a panel, text area, and three buttons.
It also instantiates the list.
class OrderWindow extends Frame
{
/* Code similar to that in your applet.
However, the init method becomes the constructor. See the entire
example on the website under Order Example with a Frame and a Saved Method.
*/
} // class OrderWindow
You should also add a new button that when clicked will save the linked list to an output file. This file should contain all the data in a format suitable for printing out. This gives you a way of capturing a program’s output. The following methods should help:
// Method that saves the list of orders to a second file.
public void saveOrders ()
{
try
{
PrintStream
outfile = new PrintStream (new FileOutputStream ("orderFile2.txt"));
Order
tempOrder = listHead;
while
(tempOrder != null)
{
tempOrder.outputOrder (outfile);
tempOrder = tempOrder.getNext ();
}
outfile.close
();
} catch (FileNotFoundException e) {System.out.println
("No File");}
} // method saveOrders
// Method to print the order to an output file.
public void outputOrder (PrintStream outfile)
{
outfile.println ("Product Name: " +
name);
outfile.println ("Product ID: " + id);
outfile.println ("Price: " + price);
outfile.println ("Quantity: " + quantity);
outfile.println ();
} // method outputOrder