public ZipFile(File f) throws IOException 
{
        this(f, null);
}

Opens the given file for reading, assuming the platform's native encoding for file names.

Parameters:

f - the archive.

Throws:

IOException - if an error occurs while reading the file.

 public ZipFile(String name) throws IOException 
{
        this(new File(name), null);
}

Opens the given file for reading, assuming the platform's native encoding for file names.

Parameters:

name - name of the archive.

Throws:

IOException - if an error occurs while reading the file.

 public ZipFile(String name,
    String encoding) throws IOException 
{
        this(new File(name), encoding, true);
}

Opens the given file for reading, assuming the specified encoding for file names, scanning unicode extra fields.

Parameters:

name - name of the archive.

encoding - the encoding to use for file names

Throws:

IOException - if an error occurs while reading the file.

 public ZipFile(File f,
    String encoding) throws IOException 
{
        this(f, encoding, true);
}

Opens the given file for reading, assuming the specified encoding for file names and scanning for unicode extra fields.

Parameters:

f - the archive.

encoding - the encoding to use for file names, use null for the platform's default encoding

Throws:

IOException - if an error occurs while reading the file.

 public ZipFile(File f,
    String encoding,
    boolean useUnicodeExtraFields) throws IOException 
{
        this.encoding = encoding;
        this.zipEncoding = ZipEncodingHelper.getZipEncoding(encoding);
        this.useUnicodeExtraFields = useUnicodeExtraFields;
        archive = new RandomAccessFile(f, "r");
        boolean success = false;
        try {
            Map entriesWithoutUTF8Flag = populateFromCentralDirectory();
            resolveLocalFileHeaderData(entriesWithoutUTF8Flag);
            success = true;
        } finally {
            if (!success) {
                try {
                    archive.close();
                } catch (IOException e2) {
                    // swallow, throw the original exception instead
                }
            }
        }
}

Opens the given file for reading, assuming the specified encoding for file names.

Parameters:

f - the archive.

encoding - the encoding to use for file names, use null for the platform's default encoding

useUnicodeExtraFields - whether to use InfoZIP Unicode Extra Fields (if present) to set the file names.

Throws:

IOException - if an error occurs while reading the file.

 public  void close() throws IOException 
{
        archive.close();
}

Closes the archive.

 public static  void closeQuietly(ZipFile zipfile) 
{
        if (zipfile != null) {
            try {
                zipfile.close();
            } catch (IOException e) {
                //ignore
            }
        }
}

close a zipfile quietly; throw no io fault, do nothing on a null parameter

 protected static Date fromDosTime(ZipLong zipDosTime) 
{
        long dosTime = zipDosTime.getValue();
        return new Date(dosToJavaTime(dosTime));
}

Convert a DOS date/time field to a Date object.

 public String getEncoding() 
{
        return encoding;
}

The encoding to use for filenames and the file comment.

 public Enumeration getEntries() 
{
        return Collections.enumeration(entries.keySet());
}

Returns all entries.

 public ZipEntry getEntry(String name) 
{
        return (ZipEntry) nameMap.get(name);
}

Returns a named entry - or null if no entry by that name exists.

 public InputStream getInputStream(ZipEntry ze) throws IOException, ZipException 
{
        OffsetEntry offsetEntry = (OffsetEntry) entries.get(ze);
        if (offsetEntry == null) {
            return null;
        }
        long start = offsetEntry.dataOffset;
        BoundedInputStream bis =
            new BoundedInputStream(start, ze.getCompressedSize());
        switch (ze.getMethod()) {
            case ZipEntry.STORED:
                return bis;
            case ZipEntry.DEFLATED:
                bis.addDummy();
                return new InflaterInputStream(bis, new Inflater(true));
            default:
                throw new ZipException("Found unsupported compression method "
                                       + ze.getMethod());
        }
}

Returns an InputStream for reading the contents of the given entry.

 protected String getString(byte[] bytes) throws ZipException 
{
        try {
            return ZipEncodingHelper.getZipEncoding(encoding).decode(bytes);
        } catch (IOException ex) {
            throw new ZipException("Failed to decode name: " + ex.getMessage());
        }
}

Retrieve a String from the given bytes using the encoding set for this ZipFile.