FilterInputStream.read
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public int read() throws IOException
Returns
the next byte of data, or -1 if the end of the
stream is reached.
Description
Reads the next byte of data from this input stream. The value
byte is returned as an int in the range
0 to 255. If no byte is available
because the end of the stream has been reached, the value
-1 is returned. This method blocks until input data
is available, the end of the stream is detected, or an exception
is thrown.
The read method of FilterInputStream
calls the read method of its underlying input stream
and returns whatever value that method returns.
Exceptions
IOException
if an I/O error occurs.
Overrides
read in class InputStream
See Also
in
public int read( byte b[] ) throws IOException
Parameters
- b
- the buffer into which the data is read.
Returns
the total number of bytes read into the buffer, or
-1 if there is no more data because the end of
the stream has been reached.
Description
Reads up to byte.length bytes of data from this
input stream into an array of bytes. This method blocks until some
input is available.
The read method of FilterInputStream
calls the read method of three arguments with the
arguments b, 0, and
b.length, and returns whatever value that method returns.
Note that this method does not call the one-argument
read method of its underlying stream with the single
argument b. Subclasses of
FilterInputStream do not need to override this method
if they have overridden the three-argument read method.
Exceptions
IOException
if an I/O error occurs.
Overrides
read in class InputStream
See Also
read
public int read( byte b[],
int off,
int len ) throws IOException
Parameters
- b
- the buffer into which the data is read.
- off
- the start offset of the data.
- len
- the maximum number of bytes read.
Returns
the total number of bytes read into the buffer, or
-1 if there is no more data because the end of
the stream has been reached.
Description
Reads up to len bytes of data from this input stream
into an array of bytes. This method blocks until some input is
available.
The read method of FilterInputStream
calls the read method of its underlying input stream
with the same arguments and returns whatever value that method returns.
Exceptions
IOException
if an I/O error occurs.
Overrides
read in class InputStream
See Also
in