Added in API level 1

Adler32

open class Adler32 : Checksum

kotlin.Any
↳	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.

Passing a null argument to a method in this class will cause a NullPointerException to be thrown.

Summary

Public constructors
`Adler32()` Creates a new Adler32 object.

Public methods
open Long	`getValue()` Returns the checksum value.
open Unit	`reset()` Resets the checksum to initial value.
open Unit	`update(b: ByteArray!)` Updates the checksum with the specified array of bytes.
open Unit	`update(b: ByteArray!, off: Int, len: Int)` Updates the checksum with the specified array of bytes.
open Unit	`update(b: Int)` Updates the checksum with the specified byte (the low eight bits of the argument b).
open Unit	`update(buffer: ByteBuffer!)` Updates the checksum with the bytes from the specified buffer.

Public constructors

Adler32

Added in API level 1

Adler32()

Creates a new Adler32 object.

Public methods

getValue

Added in API level 1

open fun getValue(): Long

Returns the checksum value.

Return
`Long`	the current checksum value

reset

Added in API level 1

open fun reset(): Unit

Resets the checksum to initial value.

update

Added in API level 1

open fun update(b: ByteArray!): Unit

Updates the checksum with the specified array of bytes.

Parameters
`b`	ByteArray!: the byte array to update the checksum with

Exceptions
`java.lang.NullPointerException`	if `b` is `null`

update

Added in API level 1

open fun update(
    b: ByteArray!, 
    off: Int, 
    len: Int
): Unit

Updates the checksum with the specified array of bytes.

Parameters
`b`	ByteArray!: 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

Exceptions
`java.lang.ArrayIndexOutOfBoundsException`	if `off` is negative, or `len` is negative, or `off+len` is negative or greater than the length of the array `b`.

update

Added in API level 1

open fun update(b: Int): Unit

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

update

Added in API level 26

open fun update(buffer: ByteBuffer!): Unit

Updates the checksum with the bytes from the specified buffer. The checksum is updated with the remaining bytes in the buffer, starting at the buffer's position. Upon return, the buffer's position will be updated to its limit; its limit will not have been changed.

Parameters
`buffer`	ByteBuffer!: the ByteBuffer to update the checksum with

Exceptions
`java.lang.NullPointerException`	if `buffer` is `null`