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Java™ Platform Standard Ed. 6 |
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java.lang.Objectjava.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 | |
|---|---|
protected Writer |
out
The underlying character-output stream. |
| Fields inherited from class java.io.Writer |
|---|
lock |
| Constructor Summary | |
|---|---|
protected |
FilterWriter(Writer out)
Create a new filtered writer. |
| Method Summary | |
|---|---|
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 |
|---|
append, append, append, write, write |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
|---|
protected Writer out
| Constructor Detail |
|---|
protected FilterWriter(Writer out)
out - a Writer object to provide the underlying stream.
NullPointerException - if out is null| Method Detail |
|---|
public void write(int c)
throws IOException
write in class Writerc - int specifying a character to be written
IOException - If an I/O error occurs
public void write(char[] cbuf,
int off,
int len)
throws IOException
write in class Writercbuf - 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 occurs
public void write(String str,
int off,
int len)
throws IOException
write in class Writerstr - String to be writtenoff - Offset from which to start reading characterslen - Number of characters to be written
IOException - If an I/O error occurs
public void flush()
throws IOException
flush in interface Flushableflush in class WriterIOException - If an I/O error occurs
public void close()
throws IOException
Writer
close in interface Closeableclose in class WriterIOException - If an I/O error occurs
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Java™ Platform Standard Ed. 6 |
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