程序包 java.util.zip

接口 Checksum

所有已知实现类:

Adler32, CRC32

public interface Checksum

An interface representing a data checksum.

方法概要

限定符和类型	方法	说明
long	getValue()	Returns the current checksum value.
void	reset()	Resets the checksum to its initial value.
void	update(byte[] b, int off, int len)	Updates the current checksum with the specified array of bytes.
void	update(int b)	Updates the current checksum with the specified byte.

方法详细资料

update

void update(int b)

Updates the current checksum with the specified byte.

参数:

b - the byte to update the checksum with

update

void update(byte[] b,
            int off,
            int len)

Updates the current checksum with the specified array of bytes.

参数:

b - the byte array to update the checksum with

off - the start offset of the data

len - the number of bytes to use for the update

getValue

long getValue()

Returns the current checksum value.

返回:

the current checksum value

reset

void reset()

Resets the checksum to its initial value.