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Method Summary
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Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Constructor Detail
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CheckedInputStream
public CheckedInputStream(InputStream in,
Checksum cksum)
Creates an input stream using the specified Checksum.
- Parameters:
in
- the input stream
cksum
- the Checksum
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Method Detail
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read
public int read(byte[] buf,
int off,
int len)
throws IOException
Reads into an array of bytes. If len
is not zero, the method
blocks until some input is available; otherwise, no
bytes are read and 0
is returned.
- Overrides:
read
in class FilterInputStream
- Parameters:
buf
- the buffer into which the data is read
off
- the start offset in the destination array b
len
- the maximum number of bytes read
- Returns:
- the actual number of bytes read, or -1 if the end
of the stream is reached.
- Throws:
NullPointerException
- If buf
is null
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IndexOutOfBoundsException
- If off
is negative,
len
is negative, or len
is greater than
buf.length - off
IOException
- if an I/O error has occurred
- See Also:
FilterInputStream.in