Package java.util.zip
Provides classes for reading and writing the standard ZIP and GZIP file formats.
See: Description
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Interface Summary Interface Description Checksum An interface representing a data checksum. -
Class Summary Class Description 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.DeflaterInputStream Implements an input stream filter for compressing data in the "deflate" compression format.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 file 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 the popular ZLIB compression library.InflaterInputStream This class implements a stream filter for uncompressing data in the "deflate" compression format.InflaterOutputStream Implements an output stream filter for uncompressing data stored 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 Exception Description DataFormatException Signals that a data format error has occurred.ZipException Signals that a Zip exception of some sort has occurred. -
Error Summary Error Description ZipError Signals that an unrecoverable error has occurred.
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.zipclasses are based. - An implementation may optionally support the ZIP64(tm) format extensions defined by the PKWARE ZIP File Format Specification. The ZIP64(tm) format extensions are used to overcome the size limitations of the original ZIP format.
- APPENDIX D of PKWARE ZIP File Format Specification - Language Encoding Flag (EFS) to encode ZIP entry filename and comment fields using UTF-8.
- ZLIB Compressed Data Format Specification version 3.3 (pdf) (RFC 1950)
- DEFLATE Compressed Data Format Specification version 1.3 (pdf) (RFC 1951)
- GZIP file format specification version 4.3 (pdf) (RFC 1952)
- CRC-32 checksum is described in RFC 1952 (above)
- Adler-32 checksum is described in RFC 1950 (above)
- Since:
- JDK1.1
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