Skip to content

Most visited

Recently visited

navigation

Adler32

public class Adler32
extends Object implements Checksum

java.lang.Object
   ↳ java.util.zip.Adler32


A class that can be used to compute the Adler-32 checksum of a data stream. An Adler-32 checksum is almost as reliable as a CRC-32 but can be computed much faster.

See also:

Summary

Public constructors

Adler32()

Creates a new Adler32 object.

Public methods

long getValue()

Returns the checksum value.

void reset()

Resets the checksum to initial value.

void update(byte[] b)

Updates the checksum with the specified array of bytes.

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

Updates the checksum with the specified array of bytes.

void update(int b)

Updates the checksum with the specified byte (the low eight bits of the argument b).

Inherited methods

From class java.lang.Object
From interface java.util.zip.Checksum

Public constructors

Adler32

Added in API level 1
Adler32 ()

Creates a new Adler32 object.

Public methods

getValue

Added in API level 1
long getValue ()

Returns the checksum value.

Returns
long the current checksum value

reset

Added in API level 1
void reset ()

Resets the checksum to initial value.

update

Added in API level 1
void update (byte[] b)

Updates the checksum with the specified array of bytes.

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

update

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

Updates the 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
void update (int b)

Updates the checksum with the specified byte (the low eight bits of the argument b).

Parameters
b int: the byte to update the checksum with
This site uses cookies to store your preferences for site-specific language and display options.

Hooray!

This class requires API level or higher

This doc is hidden because your selected API level for the documentation is . You can change the documentation API level with the selector above the left navigation.

For more information about specifying the API level your app requires, read Supporting Different Platform Versions.

Take a one-minute survey?
Help us improve Android tools and documentation.