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public abstract class FilterWriter extends Writer
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 |
Writes a portion of a string. |
Methods inherited from class java.io.Writer |
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append, append, append, close, flush, write, write, write, 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.Method Detail |
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public void close() throws IOException
close
in class Writer
IOException
public void flush() throws IOException
flush
in class Writer
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 writtenIOException
- If an I/O error occurspublic void write(int c) throws IOException
write
in class Writer
c
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 writtenIOException
- If an I/O error occurs
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