Print (Silent Print) From Java Applet

import java.awt.*;
import java.awt.event.*;
import java.io.IOException;
import java.net.*;

import javax.print.*;
import javax.print.attribute.*;
import javax.print.attribute.standard.*;
import javax.swing.*;

public class CopyOfPrinterApplet extends JApplet {

private PrintRequestAttributeSet aset;
DocFlavor DocFlavor;
public Doc doc;
DocPrintJob printerJob;
JTextPane pane;


/**
* DOCUMENT ME!
*/
public void init() {
getContentPane().setLayout(new BorderLayout());

pane = new JTextPane();
pane.setSize(150, 100);
pane.setContentType("text/html");
pane.setText(

"<center><b><big>Applet Test</big></b>

"

+ "</center>");

getContentPane().add(pane, "Center");

JPanel buttons = new JPanel();
buttons.setBackground(Color.white);

JButton print = new JButton("Print");

buttons.add(print);

getContentPane().add(buttons, "South");

print.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
print();
}
});
}

/**
* DOCUMENT ME!
*/
void prep() {

URL url = null;
aset = new HashPrintRequestAttributeSet();
aset.add(MediaSizeName.ISO_A4);
aset.add(new Copies(1));

try {
url =
new URL("http://www.emanuelblagonic.com/wp-content/uploads/2007/06/google-homepage.jpg");
} catch (MalformedURLException e) {
e.printStackTrace();
}
PrintService pservices =
PrintServiceLookup.lookupDefaultPrintService();
System.out.println(pservices.getName());

DocFlavor flavor = javax.print.DocFlavor.INPUT_STREAM.JPEG;
PrintRequestAttributeSet attr_set = new HashPrintRequestAttributeSet();
attr_set.add(new Copies(1));
PrintService[] service = PrintServiceLookup.lookupPrintServices(flavor, attr_set);

doc = new SimpleDoc(url, javax.print.DocFlavor.URL.PDF, null);

try {
System.out.println("DOC : \n " + doc.getPrintData());
} catch (IOException e) {
e.printStackTrace();
}
/* Create a Print Job */
printerJob = pservices.createPrintJob();
}

/**
* DOCUMENT ME!
*/
void print() {
prep();
System.out.println("Printer Name : " +
printerJob.getPrintService());
try {
printerJob.print(doc, aset);

} catch (PrintException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println("Done Printing.");
}

}