I have problem in this unzip java codes

Question

hi all,I have problem in this unzip java codes,I think either the pathway that i put C:.......is wrong or the codes are wrong because when i run it, the zipped folder is not unzipped. So anyone has another set of example or know how to correct it? Thanks!Please post the solution here!
This is the set of codes that i have:
import java.io.*;
import java.util.*;
import java.util.zip.*;
public class Unzip {
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("C:\\Temp\\FolderZiper.zip");
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;
}

Answer 1

What does the program output when it's executed? Can you copy the screen and post it here? More info can help solve the problem.
What exactly is the program supposed to do?
Add some more println() to show the program flow and what the values of key variables are. For example what is in entries after the entries() method is executed?
Some prep work on your part would make it easier for us to help.