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Class java.io.FilterReader - JDK 5 Documentation v1.1.8, Java 2 SDK 英文文档

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Class java.io.FilterReader

java.lang.Object
   |
   +----java.io.Reader
           |
           +----java.io.FilterReader

public abstract class FilterReader
extends Reader
Abstract class for reading filtered character streams.


Variable Index

 o in
The underlying character-input stream, or null if the stream has been closed

Constructor Index

 o FilterReader(Reader)
Create a new filtered reader.

Method Index

 o close()
Close the stream.
 o mark(int)
Mark the present position in the stream.
 o markSupported()
Tell whether this stream supports the mark() operation.
 o read()
Read a single character.
 o read(char[], int, int)
Read characters into a portion of an array.
 o ready()
Tell whether this stream is ready to be read.
 o reset()
Reset the stream.
 o skip(long)
Skip characters.

Variables

 o in
 protected Reader in
The underlying character-input stream, or null if the stream has been closed

Constructors

 o FilterReader
 protected FilterReader(Reader in)
Create a new filtered reader.

Methods

 o read
 public int read() throws IOException
Read a single character.

Throws: IOException
If an I/O error occurs
Overrides:
read in class Reader
 o read
 public int read(char cbuf[],
                 int off,
                 int len) throws IOException
Read characters into a portion of an array.

Throws: IOException
If an I/O error occurs
Overrides:
read in class Reader
 o skip
 public long skip(long n) throws IOException
Skip characters.

Throws: IOException
If an I/O error occurs
Overrides:
skip in class Reader
 o ready
 public boolean ready() throws IOException
Tell whether this stream is ready to be read.

Throws: IOException
If an I/O error occurs
Overrides:
ready in class Reader
 o markSupported
 public boolean markSupported()
Tell whether this stream supports the mark() operation.

Overrides:
markSupported in class Reader
 o mark
 public void mark(int readAheadLimit) throws IOException
Mark the present position in the stream.

Throws: IOException
If an I/O error occurs
Overrides:
mark in class Reader
 o reset
 public void reset() throws IOException
Reset the stream.

Throws: IOException
If an I/O error occurs
Overrides:
reset in class Reader
 o close
 public void close() throws IOException
Close the stream.

Throws: IOException
If an I/O error occurs
Overrides:
close in class Reader

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