DigestInputStream.read
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public int read() throws IOException
Returns
the byte read.
Description
Reads a byte, and updates the message digest (if the digest
function is on). That is, this method reads a byte from the
input stream, blocking until the byte is actually read. If the
digest function is on (see on), this method
will then call update on the message digest associated
with this stream, passing it the byte read.
Exceptions
IOException
if an I/O error occurs.
Overrides
read in class FilterInputStream
See Also
update
public int read( byte b[],
int off,
int len ) throws IOException
Parameters
- b
- the array into which the data is read.
- off
- the starting offset into b of where the
data should be placed.
- len
- the maximum number of bytes to be read from the input
stream into b, starting at offset off.
Returns
the actual number of bytes read. This is less than
len if the end of the stream is reached prior to
reading len bytes. -1 is returned if no bytes were
read because the end of the stream had already been reached when
the call was made.
Description
Reads into a byte array, and updates the message digest (if the
digest function is on). That is, this method reads up to
len bytes from the input stream into the array
b, starting at offset off. This method
blocks until the data is actually
read. If the digest function is on (see on), this method will then call update
on the message digest associated with this stream, passing it
the data.
Exceptions
IOException
if an I/O error occurs.
Overrides
read in class FilterInputStream
See Also
update