|
Préférences
Moteurs de recherche
|
|||||||||||||||||||||||||||
JavaTM 2 Platform Std. Ed. v1.4.2
java.io
|
Field Summary |
Fields inherited from class java.io.Reader |
lock |
Constructor Summary | |
InputStreamReader(InputStream in)
Create an InputStreamReader that uses the default charset. |
|
InputStreamReader(InputStream in,
Charset cs)
Create an InputStreamReader that uses the given charset. |
|
InputStreamReader(InputStream in,
CharsetDecoder dec)
Create an InputStreamReader that uses the given charset decoder. |
|
InputStreamReader(InputStream in,
String charsetName)
Create an InputStreamReader that uses the named charset. |
Method Summary | |
void |
close()
Close the stream. |
String |
getEncoding()
Return the name of the character encoding being used by this stream. |
int |
read()
Read a single character. |
int |
read(char[] cbuf,
int offset,
int length)
Read characters into a portion of an array. |
boolean |
ready()
Tell whether this stream is ready to be read. |
Methods inherited from class java.io.Reader |
mark, markSupported, read, reset, skip |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public InputStreamReader(InputStream in)
in
- An InputStreampublic InputStreamReader(InputStream in, String charsetName) throws UnsupportedEncodingException
in
- An InputStreamcharsetName
- The name of a supported
charset
UnsupportedEncodingException
- If the named charset is not supportedpublic InputStreamReader(InputStream in, Charset cs)
in
- An InputStreamcs
- A charsetpublic InputStreamReader(InputStream in, CharsetDecoder dec)
in
- An InputStreamdec
- A charset decoderMethod Detail |
public String getEncoding()
If the encoding has an historical name then that name is returned; otherwise the encoding's canonical name is returned.
If this instance was created with the InputStreamReader(InputStream, String)
constructor then the returned
name, being unique for the encoding, may differ from the name passed to
the constructor. This method may return null
if the stream
has been closed.
null
if the stream has been closedCharset
public int read() throws IOException
IOException
- If an I/O error occurspublic int read(char[] cbuf, int offset, int length) throws IOException
cbuf
- Destination bufferoffset
- Offset at which to start storing characterslength
- Maximum number of characters to read
IOException
- If an I/O error occurspublic boolean ready() throws IOException
IOException
- If an I/O error occurspublic void close() throws IOException
IOException
- If an I/O error occurs