Extract Zip archive with password

I searched alot but couldn't find something useful regarding this subject.

Can anyone help me with this. What type of stream can send password...

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Enumeration;
import java.util.zip.*;

public class Ziptest
{

public static final void copyInputStream(InputStream in, OutputStream out) throws IOException
{
byte[] buffer = new byte[1024];
int len;

while((len = in.read(buffer)) >= 0)
out.write(buffer, 0, len);

in.close();
out.close();
}

public static final void main(String[] args) {
Enumeration entries;
ZipFile zipFile;

if(args.length != 1) {
System.err.println("Usage: Unzip zipfile");
return;
}

try {
zipFile = new ZipFile(args[0]);

entries = zipFile.entries();

while(entries.hasMoreElements()) {
ZipEntry entry = (ZipEntry)entries.nextElement();

if(entry.isDirectory()) {
// Assume directories are stored parents first then children.
System.err.println("Extracting directory: " + entry.getName());
// This is not robust, just for demonstration purposes.
(new File(entry.getName())).mkdir();
continue;
}

System.err.println("Extracting file: " + entry.getName());
copyInputStream(zipFile.getInputStream(entry), new BufferedOutputStream(new FileOutputStream(entry.getName())));
}

zipFile.close();
}
catch (IOException ioe)
{
System.err.println("Unhandled exception:");
ioe.printStackTrace();
return;
}
}

}


Any suggestions ????
Any help would ve very appreciated.