| Package | Description | 
|---|---|
| java.util.jar | Provides classes for reading and writing the JAR (Java ARchive) file
format, which is based on the standard ZIP file format with an
optional manifest file. | 
| java.util.zip | Provides classes for reading and writing the standard ZIP and GZIP
file formats. | 
| Class and Description | 
|---|
| DeflaterOutputStream This class implements an output stream filter for compressing data in
 the "deflate" compression format. | 
| 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. | 
| ZipException Signals that a Zip exception of some sort has occurred. | 
| 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. | 
| Class and Description | 
|---|
| Checksum An interface representing a data checksum. | 
| CRC32 A class that can be used to compute the CRC-32 of a data stream. | 
| DataFormatException Signals that a data format error has occurred. | 
| 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. | 
| 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. | 
| ZipEntry This class is used to represent a ZIP file entry. | 
| ZipException Signals that a Zip exception of some sort has occurred. | 
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For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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