[/url] [url=file:///F:/资料/文字资料/j2sdk-1_4_2-doc/docs/api/overview-summary.html]Overview
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JavaTM 2 Platform
Std. Ed. v1.4.2
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java.util.zip
Interface ChecksumAll Known Implementing Classes: Adler32, CRC32 public interface ChecksumAn interface representing a data checksum. 表示数据校验和的接口。
Method Summary
long
getValue()
Returns the current checksum value. 返回当前校验和的值。
void
reset()
Resets the checksum to its initial value. 重置校验和为初始值。
void
,]update(byte[] b, int off, int len)
Updates the current checksum with the specified array of bytes. 用指定的字节数组更新当前校验和。
void
update(int b)
Updates the current checksum with the specified byte. 用指定的字节更新当前校验和。
Method Detail
updatepublic void update(int b)
Updates the current checksum with the specified byte. 用指定的字节更新当前校验和。
Parameters: b - the byte to update the checksum with 用于更新校验和的字节数组updatepublic void update(byte[] b,
int off,
int len)
Updates the current checksum with the specified array of bytes. 用指定的字节数组更新当前校验和。
Parameters: b - the byte array to update the checksum with 用于更新校验和的字节数组 off - the start offset of the data 数据起始偏移 len - the number of bytes to use for the update 用于更新的字节数getValuepublic long getValue()
Returns the current checksum value. 返回当前校验和的值。
Returns: the current checksum value 当前校验和的值resetpublic void reset()
Resets the checksum to its initial value. 重置校验和为初始值。
[/url][url=file:///F:/资料/文字资料/j2sdk-1_4_2-doc/docs/api/overview-summary.html]Overview
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JavaTM 2 Platform
Std. Ed. v1.4.2
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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples. Copyright 2003 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.
