java.util.zip.Checksum翻译

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java.util.zip
Interface Checksum

All Known Implementing Classes:

Adler32, CRC32

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public interface Checksum

An interface representing a data checksum. 表示数据校验和的接口。

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Method Summary longgetValue()
          Returns the current checksum value. 返回当前校验和的值。 voidreset()
          Resets the checksum to its initial value. 重置校验和为初始值。 voidupdate(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。 voidupdate(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

update

public 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

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update

public 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

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getValue

public 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

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reset

public void reset()

Resets the checksum to its initial value. 重置校验和为初始值。

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