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Java™ Platform Standard Ed. 6 |
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java.lang.Object java.io.Writer java.io.FilterWriter
public abstract class FilterWriter
Abstract class for writing filtered character streams.
The abstract class FilterWriter
itself
provides default methods that pass all requests to the
contained stream. Subclasses of FilterWriter
should override some of these methods and may also
provide additional methods and fields.
Field Summary | |
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protected Writer |
out
The underlying character-output stream. |
Fields inherited from class java.io.Writer |
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lock |
Constructor Summary | |
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protected |
FilterWriter(Writer out)
Create a new filtered writer. |
Method Summary | |
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void |
close()
Closes the stream, flushing it first. |
void |
flush()
Flushes the stream. |
void |
write(char[] cbuf,
int off,
int len)
Writes a portion of an array of characters. |
void |
write(int c)
Writes a single character. |
void |
write(String str,
int off,
int len)
Writes a portion of a string. |
Methods inherited from class java.io.Writer |
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append, append, append, write, write |
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 Writer out
Constructor Detail |
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protected FilterWriter(Writer out)
out
- a Writer object to provide the underlying stream.
NullPointerException
- if out
is null
Method Detail |
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public void write(int c) throws IOException
write
in class Writer
c
- int specifying a character to be written
IOException
- If an I/O error occurspublic void write(char[] cbuf, int off, int len) throws IOException
write
in class Writer
cbuf
- Buffer of characters to be writtenoff
- Offset from which to start reading characterslen
- Number of characters to be written
IOException
- If an I/O error occurspublic void write(String str, int off, int len) throws IOException
write
in class Writer
str
- String to be writtenoff
- Offset from which to start reading characterslen
- Number of characters to be written
IOException
- If an I/O error occurspublic void flush() throws IOException
flush
in interface Flushable
flush
in class Writer
IOException
- If an I/O error occurspublic void close() throws IOException
Writer
close
in interface Closeable
close
in class Writer
IOException
- If an I/O error occurs
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Java™ Platform Standard Ed. 6 |
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