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Java Platform 1.2 Beta 4 |
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SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object | +--java.io.Writer | +--java.io.OutputStreamWriter
The encoding used by an OutputStreamWriter may be specified by name, by providing a CharToByteConverter, or by accepting the default encoding, which is defined by the system property file.encoding.
Each invocation of a write() method causes the encoding converter to be invoked on the given character(s). The resulting bytes are accumulated in a buffer before being written to the underlying output stream. The size of this buffer may be specified, but by default it is large enough for most purposes. Note that the characters passed to the write() methods are not buffered. For top efficiency, consider wrapping an OutputStreamWriter within a BufferedWriter so as to avoid frequent converter invocations. For example,
Writer out = new BufferedWriter(new OutputStreamWriter(System.out));
BufferedWriter
,
OutputStream
Fields inherited from class java.io.Writer | |
lock |
Constructor Summary | |
OutputStreamWriter(OutputStream out,
String enc)
Create an OutputStreamWriter that uses the named character encoding. |
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OutputStreamWriter(OutputStream out)
Create an OutputStreamWriter that uses the default character encoding. |
Method Summary | |
void | close()
Close the stream. |
void | flush()
Flush the stream. |
String | getEncoding()
Return the name of the encoding being used by this stream. |
void | write(char[] cbuf,
int off,
int len)
Write a portion of an array of characters. |
void | write(int c)
Write a single character. |
void | write(String str,
int off,
int len)
Write a portion of a string. |
Methods inherited from class java.io.Writer | |
write , write |
Methods inherited from class java.lang.Object | |
clone , equals , finalize , getClass , hashCode , notify , notifyAll , toString , wait , wait , wait |
Constructor Detail |
public OutputStreamWriter(OutputStream out, String enc) throws UnsupportedEncodingException
out
- An OutputStream
enc
- Name of the encoding to be usedpublic OutputStreamWriter(OutputStream out)
out
- An OutputStreamMethod Detail |
public String getEncoding()
public void write(int c) throws IOException
public void write(char[] cbuf, int off, int len) throws IOException
cbuf
- Buffer of characters
off
- Offset from which to start writing characters
len
- Number of characters to writepublic void write(String str, int off, int len) throws IOException
str
- A String
off
- Offset from which to start writing characters
len
- Number of characters to writepublic void flush() throws IOException
public void close() throws IOException
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Java Platform 1.2 Beta 4 |
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