Package Summary Overview Summary

class:CheckedInputStream [NONE]

All Implemented Interfaces:

Closeable, AutoCloseable
```
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.

Since:

1.1

See Also:

Checksum

constructor:<init>(java.io.InputStream,java.util.zip.Checksum) [NONE]

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

Parameters:

in - the input stream

cksum - the Checksum

method:read() [NONE]

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

See Also:

FilterInputStream.in

method:read(byte[],int,int) [NONE]

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.

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

method:skip(long) [CHANGED]

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 See Also: `InputStream.skipNBytes(long)`
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	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 See Also: `InputStream.skipNBytes(long)`

method:getChecksum() [NONE]

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

Returns:

the Checksum value

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