Share on Google+Share on Google+

How to select only .txt file to be zipped using java?
2 Answer(s)      6 years and a month ago
Posted in : Java Beginners


i'm trying to zipp .txt files from a folder but i want to know how to select only .txt file. I try my code but it's not working, could any one help me please.

[CODE] here is the code: import java.util.*; import*; import*;

public class ZipFile { public static void main(String[] args) {

ZipOutputStream out = null;
InputStream in = null;
try {
    File inputFile1 = new File("c:\\Target\\target.txt");// here i want to say only the directroy where .txt files are stored
    File outputFile = new File("c:\\Target\\");//here i want to put zipped file in a different directory

File Dir = new File("c:/Target"); FilenameFilter filter = new FilenameFilter() { public boolean accept(File dir, String name) { return !name.startsWith(".txt"); } }; String[] children = Dir.list(filter);

    OutputStream rawOut = new BufferedOutputStream(new FileOutputStream(outputFile));
    out = new ZipOutputStream(rawOut);

    InputStream rawIn = new FileInputStream(inputFile1);
    in = new BufferedInputStream(rawIn);

    ZipEntry entry = new ZipEntry("c:\\Target\\target.txt");
    byte[] buf = new byte[2048];
    int len;
    while ((len = > 0) {
        out.write(buf, 0, len);
catch(IOException e) {
finally {
    try {
        if(in != null) {
        if(out != null) {
    catch(IOException ignored)
            { }

} [/CODE]

Thank you


View Answers

March 1, 2011 at 1:43 PM

Java create zip file

class OnlyExt implements FilenameFilter{
  String ext;
  public OnlyExt(String ext){
  this.ext="." + ext;
  public boolean accept(File dir,String name){
  return name.endsWith(ext);
public class CreateZip{
public static int buffer = 10240;
protected void create(File exefile, File[] listFiles){
byte b[] = new byte[buffer];
FileOutputStream fout = new FileOutputStream(exefile);
ZipOutputStream out = new ZipOutputStream(fout);
for(int i = 0; i < listFiles.length; i++){
if(listFiles[i] == null || !listFiles[i].exists()|| listFiles[i].isDirectory())
System.out.println("Adding " + listFiles[i].getName());
ZipEntry addFiles = new ZipEntry(listFiles[i].getName());

FileInputStream fin = new FileInputStream(listFiles[i]);
int len =, 0, b.length);
if(len <= 0)
out.write(b, 0, len);
System.out.println("Zip File is created successfully.");
catch (Exception ex){}
public static void main(String[]args){
CreateZip exe=new CreateZip();
FilenameFilter ff = new OnlyExt("txt");
File folder = new File("c:/");
File[] files = folder.listFiles(ff);
File file=new File("C:/");
exe.create(file, files);

March 1, 2011 at 2:13 PM

Thank you very much

Java Spring Hibernate Struts Training Retrieve database from the table dynamically in jsp from oracle using servlet What does core Java include? java What are some way to learn Java quickly? Is it required to learn Java before learning Java Script? Is it necessary to learn java script before learning PHP? Are HTML5 and Java Script boosts Java career? Is Java object oriented? Fingerprint application with Java Uninstall Oracle Virtual Box JSON to HashMap Free Java online Training I want example of Control Statement in Java ANSI Color Codes with Python Create a Program that Calculates Input What is difference between JDK,JRE and JVM? How to see ubuntu version on server? How to get Page Source in Selenium (WebDriver) using Java? The path to the driver executable must be set by the webdriver.gecko.driver system property parse data from a link in java Java Program Qns using BlueJ How to fix HAX Kernel Module Is Not Installed error? Installing Audacity Looking for code Logic to check track changes & Coments in MSWord, MSWordx, MSExcel, MSExcelx is ON/OFF Installing JDK on Mac SAX Parser exception ERROR 601 (42P00): Syntax error. Encountered Thread java.lang.NoClassDefFoundError: org/apache/commons/fileupload/FileItemFactory How to install Ubuntu 16.04 LTS? HttpServletRequest cannot be resolved to a type in eclipse - Solved Unhandled event loop exception GC overhead limit exceeded Spring Data jpa with apache phoenix Caused by: java.lang.IllegalArgumentException: Not a host:port pair: PBUF o.a.h.h.z.RecoverableZooKeeper - Possibly transient ZooKeeper, quorum= com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager class not found com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager not found How to download and install Java 8 on Windows? How to uninstall JDK 7? How to install gtk-doc-tools package in Ubuntu? How to install Oracle JDK 8 on Ubuntu? ejabberd_ctl.beam not found - Solved How to convert date to UTC format in Java? How to install autoconf, automake and libtool in Ubuntu 15.10? How to convert current date to mm dd yyyy format in Java? How to convert current date to dd mm yyyy format in Java? How to stop window closing in "internalFrameClosing" event. How to find list of all index in Neo4j? file location SASLError using PLAIN: not-authorized


Advertisement null