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Class java.io.OutputStreamWriter

java.lang.Object
   |
   +----java.io.Writer
           |
           +----java.io.OutputStreamWriter

public class OutputStreamWriter

extends Writer

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));
 

See Also:

BufferedWriter, OutputStream

OutputStreamWriter(OutputStream)

Create an OutputStreamWriter that uses the default character encoding.

OutputStreamWriter(OutputStream, String)

Create an OutputStreamWriter that uses the named character encoding.

close()

Close the stream.

flush()

Flush the stream.

getEncoding()

Return the name of the encoding being used by this stream.

write(char[], int, int)

Write a portion of an array of characters.

write(int)

Write a single character.

write(String, int, int)

Write a portion of a string.

 public OutputStreamWriter(OutputStream out,
                           String enc) throws UnsupportedEncodingException

Create an OutputStreamWriter that uses the named character encoding.

Parameters:

out - An OutputStream

enc - Name of the encoding to be used

Throws: UnsupportedEncodingException

If the named encoding is not supported

 public OutputStreamWriter(OutputStream out)

Create an OutputStreamWriter that uses the default character encoding.

Parameters:

out - An OutputStream

 public String getEncoding()

Return the name of the encoding being used by this stream. May return null if the stream has been closed.

 public void write(int c) throws IOException

Write a single character.

Throws: IOException

If an I/O error occurs

Overrides:

write in class Writer

 public void write(char cbuf[],
                   int off,
                   int len) throws IOException

Write a portion of an array of characters.

Parameters:

cbuf - Buffer of characters

off - Offset from which to start writing characters

len - Number of characters to write

Throws: IOException

If an I/O error occurs

Overrides:

write in class Writer

 public void write(String str,
                   int off,
                   int len) throws IOException

Write a portion of a string.

Parameters:

str - A String

off - Offset from which to start writing characters

len - Number of characters to write

Throws: IOException

If an I/O error occurs

Overrides:

write in class Writer

 public void flush() throws IOException

Flush the stream.

Throws: IOException

If an I/O error occurs

Overrides:

flush in class Writer

 public void close() throws IOException

Close the stream.

Throws: IOException

If an I/O error occurs

Overrides:

close in class Writer

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