| Package | Description | 
|---|---|
| java.io | 
 Provides for system input and output through data streams,
serialization and the file system. 
 | 
| java.lang | 
 Provides classes that are fundamental to the design of the Java
 programming language. 
 | 
| java.nio.channels | 
 Defines channels, which represent connections to entities that are capable of
 performing I/O operations, such as files and sockets; defines selectors, for
 multiplexed, non-blocking I/O operations. 
 | 
| java.nio.charset | 
 Defines charsets, decoders, and encoders, for translating between bytes and
Unicode characters. 
 | 
| java.nio.charset.spi | 
 Service-provider classes for the  
java.nio.charset package. | 
| java.nio.file | 
 Defines interfaces and classes for the Java virtual machine to access files,
 file attributes, and file systems. 
 | 
| java.util.zip | 
 Provides classes for reading and writing the standard ZIP and GZIP
file formats. 
 | 
| javax.tools | 
 Provides interfaces for tools which can be invoked from a program,
 for example, compilers. 
 | 
| Class and Description | 
|---|
| Charset
 A named mapping between sequences of sixteen-bit Unicode code units and sequences of
 bytes. 
 | 
| CharsetDecoder
 An engine that can transform a sequence of bytes in a specific charset into a sequence of
 sixteen-bit Unicode characters. 
 | 
| CharsetEncoder
 An engine that can transform a sequence of sixteen-bit Unicode characters into a sequence of
 bytes in a specific charset. 
 | 
| Class and Description | 
|---|
| Charset
 A named mapping between sequences of sixteen-bit Unicode code units and sequences of
 bytes. 
 | 
| Class and Description | 
|---|
| CharsetDecoder
 An engine that can transform a sequence of bytes in a specific charset into a sequence of
 sixteen-bit Unicode characters. 
 | 
| CharsetEncoder
 An engine that can transform a sequence of sixteen-bit Unicode characters into a sequence of
 bytes in a specific charset. 
 | 
| Class and Description | 
|---|
| CharacterCodingException
 Checked exception thrown when a character encoding
 or decoding error occurs. 
 | 
| Charset
 A named mapping between sequences of sixteen-bit Unicode code units and sequences of
 bytes. 
 | 
| CharsetDecoder
 An engine that can transform a sequence of bytes in a specific charset into a sequence of
 sixteen-bit Unicode characters. 
 | 
| CharsetEncoder
 An engine that can transform a sequence of sixteen-bit Unicode characters into a sequence of
 bytes in a specific charset. 
 | 
| CoderResult
 A description of the result state of a coder. 
 | 
| CodingErrorAction
 A typesafe enumeration for coding-error actions. 
 | 
| Class and Description | 
|---|
| Charset
 A named mapping between sequences of sixteen-bit Unicode code units and sequences of
 bytes. 
 | 
| Class and Description | 
|---|
| Charset
 A named mapping between sequences of sixteen-bit Unicode code units and sequences of
 bytes. 
 | 
| Class and Description | 
|---|
| Charset
 A named mapping between sequences of sixteen-bit Unicode code units and sequences of
 bytes. 
 | 
| Class and Description | 
|---|
| Charset
 A named mapping between sequences of sixteen-bit Unicode code units and sequences of
 bytes. 
 | 
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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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