Package adalid.commons.util

Class HexUtils

java.lang.Object
adalid.commons.util.HexUtils
public final class HexUtils extends Object
Library of utility methods useful in dealing with converting byte arrays to and from strings of hexadecimal digits.
Author:
Craig R. McClanahan

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final int[]
    DEC
     

  • Constructor Summary

    Constructors
    Constructor
    Description
    HexUtils()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static String
    convert(byte[] bytes)
    Convert a byte array into a printable format containing a String of hexadecimal digit characters (two per byte).
    static byte[]
    convert(String digits)
    Convert a String of hexadecimal digits into the corresponding byte array by encoding each two hexadecimal digits as a byte.
    static int
    convert2Int(byte[] hex)
    Convert 4 hex digits to an int, and return the number of converted bytes.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Field Details

    • DEC

      public static final int[] DEC

  • Constructor Details

    • HexUtils

      public HexUtils()

  • Method Details

    • convert

      public static byte[] convert(String digits)
      Convert a String of hexadecimal digits into the corresponding byte array by encoding each two hexadecimal digits as a byte.
      Parameters:
      digits - Hexadecimal digits representation
      Returns:
      hex byte array
      Throws:
      IllegalArgumentException - if an invalid hexadecimal digit is found, or the input string contains an odd number of hexadecimal digits

    • convert

      public static String convert(byte[] bytes)
      Convert a byte array into a printable format containing a String of hexadecimal digit characters (two per byte).
      Parameters:
      bytes - Byte array representation
      Returns:
      hex string

    • convert2Int

      public static int convert2Int(byte[] hex)
      Convert 4 hex digits to an int, and return the number of converted bytes.
      Parameters:
      hex - Byte array containing exactly four hexadecimal digits
      Returns:
      integer value of hex
      Throws:
      IllegalArgumentException - if an invalid hexadecimal digit is included