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added in API level 1

Checksum

public interface Checksum

java.util.zip.Checksum


An interface representing a data checksum.

Summary

Public methods

abstract long getValue()

Returns the current checksum value.

abstract void reset()

Resets the checksum to its initial value.

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

Updates the current checksum with the specified array of bytes.

abstract void update(int b)

Updates the current checksum with the specified byte.

Public methods

getValue

added in API level 1
public abstract long getValue ()

Returns the current checksum value.

Returns
long the current checksum value

reset

added in API level 1
public abstract void reset ()

Resets the checksum to its initial value.

update

added in API level 1
public abstract void update (byte[] b, 
                int off, 
                int len)

Updates the current checksum with the specified array of bytes.

Parameters
b byte: the byte array to update the checksum with

off int: the start offset of the data

len int: the number of bytes to use for the update

update

added in API level 1
public abstract void update (int b)

Updates the current checksum with the specified byte.

Parameters
b int: the byte to update the checksum with