how to extract rar or zip files in java?

i have a requirement of extracting a zip file but the problem is that
the zip file contains nested filders and files are present in that folders

say like scr-->main-->helloword.class

the util.zip only works when there is just files in zip format , but in my case there are folder,
the util.zip is not working
can you have any alternative to this ?

You don't need an alternative. Java and the java.util.zip package is perfectly capable of dealing with folders within archives. I expect you haven't written your code to do that.

Paul Clapham wrote:You don't need an alternative. Java and the java.util.zip package is perfectly capable of dealing with folders within archives. I expect you haven't written your code to do that.

this is the code
what else should i do
to get that functionality up

private boolean nowExtractingZipSourceFiles(String downlodingItem, File file) {
        
        ZipInputStream zipInputStream = null;
        FileOutputStream fileOutputStream = null;
        ZipEntry zipEntry = null;
        String split = null;
        if(downlodingItem != null)
        {
            
            split = downlodingItem.substring(0, downlodingItem.length() - 4);
        }
        
        System.out.println(split);
        
        String extractedLocation = "C:/Users/" + username + "/Desktop/" + downlodingItem;
        
        try {
            zipInputStream = new ZipInputStream(new FileInputStream(file));
        } catch (FileNotFoundException ex) {
            Logger.getLogger(UpdateRoutine.class.getName()).log(Level.SEVERE, null, ex);
        }
        
        try {
            fileOutputStream = new FileOutputStream(extractedLocation);
        } catch (FileNotFoundException ex) {
            Logger.getLogger(UpdateRoutine.class.getName()).log(Level.SEVERE, null, ex);
        }
        
        
      
        byte[] readingBytes = new byte[10000];
        
        int byteReaded = 0;
        
                      
        
        try {
            if((zipEntry = zipInputStream.getNextEntry()) != null)
            {
                while((byteReaded = zipInputStream.read(readingBytes)) > 0)
                {
                   
                    fileOutputStream.write(readingBytes, 0, byteReaded);
                    
                }
            }
        } catch (IOException ex) {
            Logger.getLogger(UpdateRoutine.class.getName()).log(Level.SEVERE, null, ex);
        }
                    
        
        try {
            fileOutputStream.flush();
        } catch (IOException ex) {
            Logger.getLogger(UpdateRoutine.class.getName()).log(Level.SEVERE, null, ex);
        }
        try {
            zipInputStream.close();
        } catch (IOException ex) {
            Logger.getLogger(UpdateRoutine.class.getName()).log(Level.SEVERE, null, ex);
        }
        
        
        try {
            fileOutputStream.close();
        } catch (IOException ex) {
            Logger.getLogger(UpdateRoutine.class.getName()).log(Level.SEVERE, null, ex);
        }
        
//        file.deleteOnExit();
        
        return true;
        
        
        
        
    }

That code only ever writes to a single file - how do think it would extract multiple files and/or directories?

Tim Moores wrote:That code only ever writes to a single file - how do think it would extract multiple files and/or directories?

can you modify my code to show
me how to do that , please?

No, I have better things to do. Start here: http://java.sun.com/developer/technicalArticles/Programming/compression/