| Package | Description | 
|---|---|
| java.io | 
 Provides for system input and output through data streams,
serialization and the file system. 
 | 
| java.security | 
 Provides the classes and interfaces for the security framework. 
 | 
| 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. 
 | 
| javax.crypto | 
 Provides the classes and interfaces for cryptographic operations. 
 | 
| javax.swing | 
 Provides a set of "lightweight"
(all-Java language) components that,
to the maximum degree possible, work the same on all platforms. 
 | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
BufferedInputStream
A  
BufferedInputStream adds
 functionality to another input stream-namely,
 the ability to buffer the input and to
 support the mark and reset
 methods. | 
class  | 
DataInputStream
A data input stream lets an application read primitive Java data
 types from an underlying input stream in a machine-independent
 way. 
 | 
class  | 
LineNumberInputStream
Deprecated. 
 
This class incorrectly assumes that bytes adequately represent
             characters.  As of JDK 1.1, the preferred way to operate on
             character streams is via the new character-stream classes, which
             include a class for counting line numbers. 
 | 
class  | 
PushbackInputStream
A  
PushbackInputStream adds
 functionality to another input stream, namely
 the  ability to "push back" or "unread"
 one byte. | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
DigestInputStream
A transparent stream that updates the associated message digest using
 the bits going through the stream. 
 | 
| 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  | 
CheckedInputStream
An input stream that also maintains a checksum of the data being read. 
 | 
class  | 
DeflaterInputStream
Implements an input stream filter for compressing data in the "deflate"
 compression format. 
 | 
class  | 
GZIPInputStream
This class implements a stream filter for reading compressed data in
 the GZIP file format. 
 | 
class  | 
InflaterInputStream
This class implements a stream filter for uncompressing data in the
 "deflate" compression format. 
 | 
class  | 
ZipInputStream
This class implements an input stream filter for reading files in the
 ZIP file format. 
 | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
CipherInputStream
A CipherInputStream is composed of an InputStream and a Cipher so
 that read() methods return data that are read in from the
 underlying InputStream but have been additionally processed by the
 Cipher. 
 | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
ProgressMonitorInputStream
Monitors the progress of reading from some InputStream. 
 | 
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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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