Java Platform 1.2
Beta 4

Class java.io.FilterReader

java.lang.Object
  |
  +--java.io.Reader
        |
        +--java.io.FilterReader
Direct Known Subclasses:
PushbackReader

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

Since:
JDK1.1

Field Summary
protected  Reader in
          The underlying character-input stream, or null if the stream has been closed
 
Fields inherited from class java.io.Reader
lock
 
Constructor Summary
FilterReader(Reader in)
          Create a new filtered reader.
 
Method Summary
 void close()
          Close the stream.
 void mark(int readAheadLimit)
          Mark the present position in the stream.
 boolean markSupported()
          Tell whether this stream supports the mark() operation.
 int read()
          Read a single character.
 int read(char[] cbuf, int off, int len)
          Read characters into a portion of an array.
 boolean ready()
          Tell whether this stream is ready to be read.
 void reset()
          Reset the stream.
 long skip(long n)
          Skip characters.
 
Methods inherited from class java.io.Reader
read
 
Methods inherited from class java.lang.Object
clone , equals , finalize , getClass , hashCode , notify , notifyAll , toString , wait , wait , wait
 

Field Detail

in

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

FilterReader

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

read

public int read()
         throws IOException
Read a single character.
Throws:
IOException - If an I/O error occurs
Overrides:
read in class Reader

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

skip

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

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

markSupported

public boolean markSupported()
Tell whether this stream supports the mark() operation.
Overrides:
markSupported in class Reader

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

reset

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

close

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

Java Platform 1.2
Beta 4

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