| 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. 
 | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
JarInputStream
The  
JarInputStream class is used to read the contents of
 a JAR file from any input stream. | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
GZIPInputStream
This class implements a stream filter for reading compressed data in
 the GZIP file format. 
 | 
class  | 
ZipInputStream
This class implements an input stream filter for reading files in the
 ZIP file format. 
 | 
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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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