java.util.zip

Class Adler32

Contents
  • All Implemented Interfaces:
    Checksum

    public class Adler32
extends Object
implements Checksum
    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:
    Checksum

    • Constructor Detail

      • Adler32

        public Adler32()
        Creates a new Adler32 object.

    • Method Detail

      • update

        public void update(int b)
        Updates the checksum with the specified byte (the low eight bits of the argument b).
        Specified by:
        update in interface Checksum
        Parameters:
        b - the byte to update the checksum with

      • update

        public void update(byte[] b,
          int off,
          int len)
        Updates the checksum with the specified array of bytes.
        Specified by:
        update in interface Checksum
        Parameters:
        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

      • update

        public void update(byte[] b)
        Updates the checksum with the specified array of bytes.
        Parameters:
        b - the byte array to update the checksum with

      • reset

        public void reset()
        Resets the checksum to initial value.
        Specified by:
        reset in interface Checksum

      • getValue

        public long getValue()
        Returns the checksum value.
        Specified by:
        getValue in interface Checksum
        Returns:
        the current checksum value

Document created the 11/06/2005, last modified the 04/03/2020
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