uk.org.retep.util.io
Class CRC16

java.lang.Object
  uk.org.retep.util.io.CRC16

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable

public final class CRC16
extends java.lang.Object
implements java.io.Externalizable

A simple 16bit cyclic redundancy check for a set of bytes

Author:

peter

See Also:

Serialized Form

Constructor Summary

CRC16()

Method Summary

void	add(byte v) Add the byte to the CRC
void	add(byte[] b) Add the byte[] to the CRC
void	add(byte[] b, int start, int length) Add the byte[] to the CRC
boolean	equals(java.lang.Object obj)
int	getValue()
int	hashCode()
void	readExternal(java.io.ObjectInput in)
void	reset() Reset the CRC
void	writeExternal(java.io.ObjectOutput out)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CRC16

public CRC16()

Method Detail

getValue

public int getValue()

reset

public void reset()

Reset the CRC

add

public void add(byte v)

Add the byte to the CRC

Parameters:

v - byte to add

add

public void add(byte[] b)

Add the byte[] to the CRC

Parameters:

b -

add

public void add(byte[] b,
                int start,
                int length)

Add the byte[] to the CRC

Parameters:

b - byte[]

start - start index within the array

length - number of bytes to add

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException

Specified by:

readExternal in interface java.io.Externalizable

Throws:

java.io.IOException

java.lang.ClassNotFoundException

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

Specified by:

writeExternal in interface java.io.Externalizable

Throws:

java.io.IOException