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61 lines
1.0 KiB
61 lines
1.0 KiB
/*
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* Copyright (c) 1996, 1999, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package java.util.zip;
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/**
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* An interface representing a data checksum.
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*
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* @author David Connelly
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*/
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public
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interface Checksum {
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/**
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* Updates the current checksum with the specified byte.
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*
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* @param b the byte to update the checksum with
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*/
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public void update(int b);
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/**
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* Updates the current checksum with the specified array of bytes.
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* @param b the byte array to update the checksum with
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* @param off the start offset of the data
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* @param len the number of bytes to use for the update
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*/
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public void update(byte[] b, int off, int len);
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/**
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* Returns the current checksum value.
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* @return the current checksum value
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*/
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public long getValue();
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/**
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* Resets the checksum to its initial value.
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*/
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public void reset();
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}
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