| Package | Description | 
|---|---|
| java.io | 
 Provides for system input and output through data streams,
serialization and the file system. 
 | 
| java.nio | 
 Defines buffers, which are containers for data, and provides an overview of the
other NIO packages. 
 | 
| java.util | 
 Contains the collections framework, legacy collection classes, event model,
date and time facilities, internationalization, and miscellaneous utility
classes (a string tokenizer, a random-number generator, and a bit array). 
 | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
BufferedReader
Reads text from a character-input stream, buffering characters so as to
 provide for the efficient reading of characters, arrays, and lines. 
 | 
class  | 
CharArrayReader
This class implements a character buffer that can be used as a
 character-input stream. 
 | 
class  | 
FileReader
Convenience class for reading character files. 
 | 
class  | 
FilterReader
Abstract class for reading filtered character streams. 
 | 
class  | 
InputStreamReader
An InputStreamReader is a bridge from byte streams to character streams: It
 reads bytes and decodes them into characters using a specified  
charset. | 
class  | 
LineNumberReader
A buffered character-input stream that keeps track of line numbers. 
 | 
class  | 
PipedReader
Piped character-input streams. 
 | 
class  | 
PushbackReader
A character-stream reader that allows characters to be pushed back into the
 stream. 
 | 
class  | 
Reader
Abstract class for reading character streams. 
 | 
class  | 
StringReader
A character stream whose source is a string. 
 | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
CharBuffer
A char buffer. 
 | 
| Constructor and Description | 
|---|
Scanner(Readable source)
Constructs a new  
Scanner that produces values scanned
 from the specified source. | 
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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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