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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<!-- Generated by javadoc (build 1.5.0-rc) on Wed Aug 11 07:28:14 PDT 2004 -->
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java.util.zip (Java 2 Platform SE 5.0)
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<H2>
Package java.util.zip
</H2>
Provides classes for reading and writing the standard ZIP and GZIP
file formats.
<P>
<B>See:</B>
<BR>
<A HREF="#package_description"><B>Description</B></A>
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<TD WIDTH="15%"><B><A HREF="../../../java/util/zip/Checksum.html" title="interface in java.util.zip">Checksum</A></B></TD>
<TD>An interface representing a data checksum.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../java/util/zip/Adler32.html" title="class in java.util.zip">Adler32</A></B></TD>
<TD>A class that can be used to compute the Adler-32 checksum of a data
stream.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../java/util/zip/CheckedInputStream.html" title="class in java.util.zip">CheckedInputStream</A></B></TD>
<TD>An input stream that also maintains a checksum of the data being read.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../java/util/zip/CheckedOutputStream.html" title="class in java.util.zip">CheckedOutputStream</A></B></TD>
<TD>An output stream that also maintains a checksum of the data being
written.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../java/util/zip/CRC32.html" title="class in java.util.zip">CRC32</A></B></TD>
<TD>A class that can be used to compute the CRC-32 of a data stream.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../java/util/zip/Deflater.html" title="class in java.util.zip">Deflater</A></B></TD>
<TD>This class provides support for general purpose compression using the
popular ZLIB compression library.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../java/util/zip/DeflaterOutputStream.html" title="class in java.util.zip">DeflaterOutputStream</A></B></TD>
<TD>This class implements an output stream filter for compressing data in
the "deflate" compression format.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../java/util/zip/GZIPInputStream.html" title="class in java.util.zip">GZIPInputStream</A></B></TD>
<TD>This class implements a stream filter for reading compressed data in
the GZIP file format.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../java/util/zip/GZIPOutputStream.html" title="class in java.util.zip">GZIPOutputStream</A></B></TD>
<TD>This class implements a stream filter for writing compressed data in
the GZIP file format.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../java/util/zip/Inflater.html" title="class in java.util.zip">Inflater</A></B></TD>
<TD>This class provides support for general purpose decompression using the
popular ZLIB compression library.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../java/util/zip/InflaterInputStream.html" title="class in java.util.zip">InflaterInputStream</A></B></TD>
<TD>This class implements a stream filter for uncompressing data in the
"deflate" compression format.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../java/util/zip/ZipEntry.html" title="class in java.util.zip">ZipEntry</A></B></TD>
<TD>This class is used to represent a ZIP file entry.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../java/util/zip/ZipFile.html" title="class in java.util.zip">ZipFile</A></B></TD>
<TD>This class is used to read entries from a zip file.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../java/util/zip/ZipInputStream.html" title="class in java.util.zip">ZipInputStream</A></B></TD>
<TD>This class implements an input stream filter for reading files in the
ZIP file format.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../java/util/zip/ZipOutputStream.html" title="class in java.util.zip">ZipOutputStream</A></B></TD>
<TD>This class implements an output stream filter for writing files in the
ZIP file format.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../java/util/zip/DataFormatException.html" title="class in java.util.zip">DataFormatException</A></B></TD>
<TD>Signals that a data format error has occurred.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../java/util/zip/ZipException.html" title="class in java.util.zip">ZipException</A></B></TD>
<TD>Signals that a Zip exception of some sort has occurred.</TD>
</TR>
</TABLE>
<P>
<A NAME="package_description"><!-- --></A><H2>
Package java.util.zip Description
</H2>
<P>
Provides classes for reading and writing the standard ZIP and GZIP
file formats. Also includes classes for compressing and decompressing
data using the DEFLATE compression algorithm, which is used by the
ZIP and GZIP file formats. Additionally, there are utility classes
for computing the CRC-32 and Adler-32 checksums of arbitrary
input streams.
<h2>Package Specification</h2>
</a>
<ul>
<li><a href="ftp://ftp.uu.net/pub/archiving/zip/doc/appnote-970311-iz.zip">
Info-ZIP Application Note 970311
</a> - a detailed description of the Info-ZIP format upon which
the <code>java.util.zip</code> classes are based.
<p>
<li><a href="http://www.isi.edu/in-notes/rfc1950.txt">
ZLIB Compressed Data Format Specification version 3.3</a>
<a href="http://www.isi.edu/in-notes/rfc1950.ps">
(PostScript)</a>
(RFC 1950)
<p>
<li><a href="http://www.isi.edu/in-notes/rfc1951.txt">
DEFLATE Compressed Data Format Specification version 1.3</a>
<a href="http://www.isi.edu/in-notes/rfc1951.ps">
(PostScript)</a>
(RFC 1951)
<p>
<li><a href="http://www.isi.edu/in-notes/rfc1952.txt">
GZIP file format specification version 4.3</a>
<a href="http://www.isi.edu/in-notes/rfc1952.ps">
(PostScript)</a>
(RFC 1952)
<p>
<li>CRC-32 checksum is described in RFC 1952 (above)
<p>
<li>Adler-32 checksum is described in RFC 1950 (above)
</ul>
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<font size="-1"><a href="http://java.sun.com/cgi-bin/bugreport.cgi">Submit a bug or feature</a><br>For further API reference and developer documentation, see <a href="../../../../relnotes/devdocs-vs-specs.html">Java 2 SDK SE Developer Documentation</a>. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples. <p>Copyright 2004 Sun Microsystems, Inc. All rights reserved. Use is subject to <a href="../../../../relnotes/license.html">license terms</a>. Also see the <a href="http://java.sun.com/docs/redist.html">documentation redistribution policy</a>.</font>
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