Progress of Zipping of folder on ProgressMonitor??

Question

Hi all friends,
I am facing problem with showing the progress of zipping of folder for that Iam using ProgressMonitor.I am really confused what will be the code for that I have tried with my below codes but couldn't slove my problem.My below codes zipping folder successfully only problem with showing the progress of zipping on ProgressMonitor.Can any one please rectify me where iam wrong.
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.io.*;
import javax.swing.*;
import javax.swing.event.*;
import java.util.zip.*;
public class ZipUtility1
{     ZipOutputStream cpZipOutputStream = null;
        String strSource = "";
        String strTarget = "";
        String strSubstring = "";
public static void main(String[] args) {
            if(     args == null || args.length < 2) {
                System.out.println("Usage: java ZipUtility <directory or file to be zipped> <name of zip file to be created>");
                return;          
            ZipUtility1 udZipUtility = new ZipUtility1();
            udZipUtility.strSource = args[0];
            udZipUtility.strTarget = args[1];
            udZipUtility.zip();     
private void zip(){
            try     {
                File cpFile = new File (strSource);
                if (!cpFile.isFile() && !cpFile.isDirectory() ){
                System.out.println("\nSource file/directory Not Found!");
                return;
                if  (cpFile.isDirectory()) {
                    strSubstring = strSource;
                } else {
                    strSubstring = "";
                cpZipOutputStream = new ZipOutputStream(new                                     FileOutputStream(strTarget));
                cpZipOutputStream.setLevel(9);
                zipFiles(cpFile,null);
                cpZipOutputStream.finish();
                cpZipOutputStream.close();
              JOptionPane.showMessageDialog( null, "ZIPING COMPLETE");       
System.out.println("\n Finished creating zip file " + strTarget + " from source" + strSource);
            }catch (Exception e){
                e.printStackTrace();
//Method of Zipping
private void  zipFiles(File cpFile,Component parentComponent) {
         int size=(int)cpFile.length();
//ProgressMonitor intialization
         ProgressMonitor monitor = new ProgressMonitor(parentComponent,"Packing " + strSource + "...", "", 0,size);                       
            monitor.setMillisToDecideToPopup(0);
            monitor.setMillisToPopup(0);
if (cpFile.isDirectory()) {               
                File fList[] = cpFile.listFiles();                                   
                for (int i=0; i< fList.length; i++){                                        
                      zipFiles(fList,null);
else {
try {     
String strAbsPath = cpFile.getAbsolutePath();
String strZipEntryName ="";     
if (!strSubstring.equals("") ){
strZipEntryName = strAbsPath.substring(strSource.length()+1,strAbsPath.length());
} else {
strZipEntryName = cpFile.getName();
byte[] buf = new byte[16384];
FileInputStream cpFileInputStream = new FileInputStream (cpFile) ;      
ZipEntry cpZipEntry = new ZipEntry(strZipEntryName);
cpZipOutputStream.putNextEntry(cpZipEntry );
//ProgressMonitor setNote
monitor.setNote(cpZipEntry.getName());
int len;
int count=0;
while ((len = cpFileInputStream.read(buf)) > 0)
cpZipOutputStream.write(buf, 0, len);
count += len;
monitor.setProgress(count); //ProgressMonitor setProgress
cpZipOutputStream.closeEntry() ;
} catch (Exception e) {     
e.printStackTrace();
}//End of Zipping Method
}//End of class
Regards
Bikash

Answer 1

Don't you think that the ProgressMonitor needs to run on a separate thread than your Zip utility. This thread would query results from the thread running Zip utility and repaint.