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Préférences
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JavaTM 2 Platform Std. Ed. v1.6.0
java.io
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Field Summary | |
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protected Reader |
in
The underlying character-input stream. |
Fields inherited from class java.io.Reader |
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lock |
Constructor Summary | |
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protected |
FilterReader(Reader in)
Creates a new filtered reader. |
Method Summary | |
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void |
close()
Closes the stream and releases any system resources associated with it. |
void |
mark(int readAheadLimit)
Marks the present position in the stream. |
boolean |
markSupported()
Tells whether this stream supports the mark() operation. |
int |
read()
Reads a single character. |
int |
read(char[] cbuf,
int off,
int len)
Reads characters into a portion of an array. |
boolean |
ready()
Tells whether this stream is ready to be read. |
void |
reset()
Resets the stream. |
long |
skip(long n)
Skips characters. |
Methods inherited from class java.io.Reader |
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read, read |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected Reader in
Constructor Detail |
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protected FilterReader(Reader in)
in
- a Reader object providing the underlying stream.
NullPointerException
- if in
is null
Method Detail |
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public int read() throws IOException
IOException
- If an I/O error occurspublic int read(char[] cbuf, int off, int len) throws IOException
cbuf
- Destination bufferoff
- Offset at which to start storing characterslen
- Maximum number of characters to read
IOException
- If an I/O error occurspublic long skip(long n) throws IOException
n
- The number of characters to skip
IOException
- If an I/O error occurspublic boolean ready() throws IOException
IOException
- If an I/O error occurspublic boolean markSupported()
markSupported
in class Reader
public void mark(int readAheadLimit) throws IOException
readAheadLimit
- Limit on the number of characters that may be
read while still preserving the mark. After
reading this many characters, attempting to
reset the stream may fail.
IOException
- If an I/O error occurspublic void reset() throws IOException
IOException
- If an I/O error occurspublic void close() throws IOException
Reader
IOException
- If an I/O error occurs