Printing some text on A4 size paper

Question

Hi friends, I am trying to print a simple text on my printer using java, I have included the code for printing in an action event of
a button as follows:
private void sim_printActionPerformed(java.awt.event.ActionEvent evt) {
PrintJob pjob = getToolkit().getPrintJob(this,"ppk",(Properties)null);
Graphics pg = pjob.getGraphics();
Font times = new Font("arial",Font.PLAIN,12);
pjob.getPageDimension();
pg.setFont(times);
FontMetrics tm = pg.getFontMetrics(times);
pg.drawString("Hello World",20,20);
pg.dispose();
pjob.end();
it works well for the first time when i click the button, when i repeat once again I receive a list of null pointer exceptions and there are no further printouts. Please tell me how to get print copies whenever I click the button at any time. Also suggest me some more examples if any, My aim is only to print the data entered by the user in the text boxes.
thanks in advance.
Message was edited by:
prasad_khode
Message was edited by:
prasad_khode

Answer 1

After trying variuos things I wrote another program to understand the problem, Now the program is as follows
package sample;
import java.awt.*;
import java.awt.print.*;
public class SamplePrint implements Printable {
static public void main(String args[]) {
PrinterJob pjob = PrinterJob.getPrinterJob();
Book book = new Book();
book.append(new SamplePrint(), new PageFormat());
pjob.setPageable(book);
boolean if_print = pjob.printDialog();
if (if_print) {
try {
pjob.print();
} catch (PrinterException e) {
System.err.println("Printing error: " + e);
public int print(Graphics g, PageFormat format, int pageIndex) {
g.drawString("Hello world",100,100);
return Printable.PAGE_EXISTS;
The program works fine only once that is first time after starting the system and I get the required output on the paper. But while executing the same program once again the exception is raised, that is as follows.
�Printing Error: java.awt.print.PrinterException: Printer is not accepting job.�.
If I want another print copy I have to restart the PC and the same thing continues. The following information might help you on which I am experimeting.
OS: Win XP.
Jdk1.5
Printer: HP Deskjet 3940.
Any help is greatly appreciated.