This documentation differs from the official API. Jadeite adds extra features to the API including: variable font sizes, constructions examples, placeholders for classes and methods, and auto-generated “See Also” links. Additionally it is missing some items found in standard Javadoc documentation, including: generics type information, “Deprecated” tags and comments, “See Also” links, along with other minor differences. Please send any questions or feedback to bam@cs.cmu.edu.
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java.util.zip
class CheckedInputStream

java.lang.Object extended by java.io.InputStream extended by java.io.FilterInputStream extended by java.util.zip.CheckedInputStream
All Implemented Interfaces:
Closeable
public class CheckedInputStream
extends FilterInputStream

An input stream that also maintains a checksum of the data being read. The checksum can then be used to verify the integrity of the input data.

Field Summary
 
Fields inherited from class java.io.FilterInputStream
in
 
Constructor Summary
CheckedInputStream(InputStream in, Checksum cksum)

          Creates an input stream using the specified Checksum.
 
Method Summary
 Checksum
getChecksum()

          Returns the Checksum for this input stream.
 int
read()

          Reads a byte.
 int
read(byte[] buf, int off, int len)

          Reads into an array of bytes.
 long
skip(long n)

          Skips specified number of bytes of input.
 
Methods inherited from class java.io.FilterInputStream
available, close, mark, markSupported, read, read, read, reset, skip
 
Methods inherited from class java.io.InputStream
available, close, mark, markSupported, read, read, read, reset, skip
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

CheckedInputStream

public CheckedInputStream(InputStream in,
                          Checksum cksum)
Creates an input stream using the specified Checksum.

Parameters:
in - the input stream
cksum - the Checksum
Method Detail

getChecksum

public Checksum getChecksum()
Returns the Checksum for this input stream.

Returns:
the Checksum value

read

public int read()
         throws IOException
Reads a byte. Will block if no input is available.

Overrides:
read in class FilterInputStream
Returns:
the byte read, or -1 if the end of the stream is reached.
Throws:
IOException - if an I/O error has occurred

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:
IOException - if an I/O error has occurred

skip

public long skip(long n)
          throws IOException
Skips specified number of bytes of input.

Overrides:
skip in class FilterInputStream
Parameters:
n - the number of bytes to skip
Returns:
the actual number of bytes skipped
Throws:
IOException - if an I/O error has occurred
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This documentation differs from the official API. Jadeite adds extra features to the API including: variable font sizes, constructions examples, placeholders for classes and methods, and auto-generated “See Also” links. Additionally it is missing some items found in standard Javadoc documentation, including: generics type information, “Deprecated” tags and comments, “See Also” links, along with other minor differences. Please send any questions or feedback to bam@cs.cmu.edu.
This page displays the Jadeite version of the documention, which is derived from the offical documentation that contains this copyright notice:
Copyright 2008 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.
The official Sun™ documentation can be found here at http://java.sun.com/javase/6/docs/api/.