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31
32Provides classes for reading and writing the standard ZIP and GZIP
33file formats.  Also includes classes for compressing and decompressing
34data using the DEFLATE compression algorithm, which is used by the
35ZIP and GZIP file formats. Additionally, there are utility classes
36for computing the CRC-32 and Adler-32 checksums of arbitrary
37input streams.
38
39
40<h2>Package Specification</h2>
41
42</a>
43<ul>
44  <li><a href="http://www.info-zip.org/doc/appnote-19970311-iz.zip">
45      Info-ZIP Application Note 970311
46      </a> - a detailed description of the Info-ZIP format upon which
47      the <code>java.util.zip</code> classes are based.
48<p>
49  <a name="zip64">
50  <li>An implementation may optionally support the ZIP64(tm) format extensions
51      defined by the 
52      <a href="http://www.pkware.com/documents/casestudies/APPNOTE.TXT">
53      PKWARE ZIP File Format Specification</a>. The ZIP64(tm) format extensions
54      are used to overcome the size limitations of the original ZIP format.
55<p>
56  <a name="lang_encoding">
57  <li>APPENDIX D of <a href="http://www.pkware.com/documents/casestudies/APPNOTE.TXT">
58      PKWARE ZIP File Format Specification</a> - Language Encoding Flag (EFS) to
59      encode ZIP entry filename and comment fields using UTF-8.
60<p>
61  <li><a href="http://www.ietf.org/rfc/rfc1950.txt">
62      ZLIB Compressed Data Format Specification version 3.3</a>
63      &nbsp;
64      <a href="http://www.ietf.org/rfc/rfc1950.txt.pdf">(pdf)</a>
65      (RFC 1950)
66<p>
67  <li><a href="http://www.ietf.org/rfc/rfc1951.txt">
68      DEFLATE Compressed Data Format Specification version 1.3</a>
69      &nbsp;
70      <a href="http://www.ietf.org/rfc/rfc1951.txt.pdf">(pdf)</a>
71      (RFC 1951)
72<p>
73  <li><a href="http://www.ietf.org/rfc/rfc1952.txt">
74      GZIP file format specification version 4.3</a>
75      &nbsp;
76      <a href="http://www.ietf.org/rfc/rfc1952.txt.pdf">(pdf)</a>
77      (RFC 1952)
78<p>
79  <li>CRC-32 checksum is described in RFC 1952 (above)
80<p>
81  <li>Adler-32 checksum is described in RFC 1950 (above)
82</ul>
83
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94@since JDK1.1
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