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Freesoft 1997 May
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Checksum.java
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1997-05-20
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/*
* Copyright (c) 1995, 1996 Sun Microsystems, Inc. All Rights Reserved.
*
* Permission to use, copy, modify, and distribute this software
* and its documentation for NON-COMMERCIAL purposes and without
* fee is hereby granted provided that this copyright notice
* appears in all copies. Please refer to the file "copyright.html"
* for further important copyright and licensing information.
*
* SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
* THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
*/
public
interface Checksum {
/**
* Updates the current checksum with the specified byte.
*/
public void update(int b);
/**
* Updates the current checksum with the specified array of bytes.
*/
public void update(byte[] b, int off, int len);
/**
* Returns the current checksum value.
*/
public long getValue();
/**
* Resets the checksum to its initial value.
*/
public void reset();
}