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Package java.util.zip

Provides classes for reading and writing the standard ZIP and GZIP file formats.

See:
Description

Interface Summary

Checksum

An interface representing a data checksum.

Class Summary

Adler32	A class that can be used to compute the Adler-32 checksum of a data stream.
CheckedInputStream	An input stream that also maintains a checksum of the data being read.
CheckedOutputStream	An output stream that also maintains a checksum of the data being written.
CRC32	A class that can be used to compute the CRC-32 of a data stream.
Deflater	This class provides support for general purpose compression using the popular ZLIB compression library.
DeflaterOutputStream	This class implements an output stream filter for compressing data in the "deflate" compression format.
GZIPInputStream	This class implements a stream filter for reading compressed data in the GZIP format.
GZIPOutputStream	This class implements a stream filter for writing compressed data in the GZIP file format.
Inflater	This class provides support for general purpose decompression using popular ZLIB compression library.
InflaterInputStream	This class implements a stream filter for uncompressing data in the "deflate" compression format.
ZipEntry	This class is used to represent a ZIP file entry.
ZipFile	This class is used to read entries from a zip file.
ZipInputStream	This class implements an input stream filter for reading files in the ZIP file format.
ZipOutputStream	This class implements an output stream filter for writing files in the ZIP file format.

Exception Summary

DataFormatException	Signals that a data format error has occurred.
ZipException

Package java.util.zip Description

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.

Package Specification

• Info-ZIP Application Note 970311 - a detailed description of the Info-ZIP format upon which the java.util.zip classes are based.

• ZLIB Compressed Data Format Specification version 3.3 (PostScript) (RFC 1950)

• DEFLATE Compressed Data Format Specification version 1.3 (PostScript) (RFC 1951)

• GZIP file format specification version 4.3 (PostScript) (RFC 1952)

• CRC-32 checksum is described in RFC 1952 (above)

• Adler-32 checksum is described in RFC 1950 (above)

For overviews, tutorials, examples, guides, and tool documentation, please see:

• ##### REFER TO NON-SPEC DOCUMENTATION HERE #####

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Since:

JDK1.1