Connecting Printer by Printer Name

Question

In my application I am using javax.print stubs to print a text file.But while running the appication I am getting error like ClassCastException.Anyone can you suggest me how to print the text file using javax.print
Below is my code:
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import javax.print.Doc;
import javax.print.DocFlavor;
import javax.print.DocPrintJob;
import javax.print.PrintException;
import javax.print.PrintService;
import javax.print.PrintServiceLookup;
import javax.print.SimpleDoc;
import javax.print.attribute.HashPrintRequestAttributeSet;
import javax.print.attribute.PrintRequestAttributeSet;
import javax.print.attribute.standard.MediaSizeName;
import javax.print.attribute.standard.Sides;
public class PrintingService {
     * @param args
     public static void main(String[] args) {
          FileInputStream inStream = null;
          try {
          inStream = new FileInputStream("d:/cells.ps");
          } catch (FileNotFoundException ffne) {
          if (inStream == null) {
          return;
          DocFlavor psInFormat = DocFlavor.INPUT_STREAM.TEXT_PLAIN_UTF_8;
          Doc myDoc = new SimpleDoc(inStream, psInFormat, null);
          PrintRequestAttributeSet aset =
               new HashPrintRequestAttributeSet();
          aset.add(new PrinterName("\\\\122.166.97.138//Canon iP1300", null));
          //aset.add(new Copies(5));
          aset.add( MediaSizeName.ISO_A4 );
          aset.add(Sides.DUPLEX);
          PrintService[] services =
          PrintServiceLookup.lookupPrintServices(psInFormat, aset);
          if (services.length > 0) {
          DocPrintJob job = services[0].createPrintJob();
          try {
               job.print(myDoc, aset);
          } catch (PrintException pe) {}
Edited by: user13656596 on Jan 11, 2011 1:39 AM

Answer 1

Thanks for reply.
This is the stack trace what I am getting.Please suggest me.
Exception in thread "main" java.lang.ClassCastException
at javax.print.attribute.AttributeSetUtilities.verifyAttributeValue(AttributeSetUtilities.java:534)
at javax.print.attribute.HashAttributeSet.add(HashAttributeSet.java:283)
at test.PrintingService.main(PrintingService.java:46)