Class Hex


  • public final class Hex
    extends java.lang.Object
    Utility functions for hex encoding.
    Author:
    John Hewson
    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static byte[] getBytes​(byte b)
      Returns the bytes corresponding to the ASCII hex encoding of the given byte.
      static byte[] getBytes​(byte[] bytes)
      Returns the bytes corresponding to the ASCII hex encoding of the given bytes.
      static char[] getChars​(short num)
      Returns the characters corresponding to the ASCII hex encoding of the given short.
      static char[] getCharsUTF16BE​(java.lang.String text)
      Takes the characters in the given string, convert it to bytes in UTF16-BE format and build a char array that corresponds to the ASCII hex encoding of the resulting bytes.
      static java.lang.String getString​(byte b)
      Returns a hex string of the given byte.
      static java.lang.String getString​(byte[] bytes)
      Returns a hex string of the given byte array.
      static void writeHexByte​(byte b, java.io.OutputStream output)
      Writes the given byte as hex value to the given output stream.
      static void writeHexBytes​(byte[] bytes, java.io.OutputStream output)
      Writes the given byte array as hex value to the given output stream.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Method Detail

      • getString

        public static java.lang.String getString​(byte b)
        Returns a hex string of the given byte.
      • getString

        public static java.lang.String getString​(byte[] bytes)
        Returns a hex string of the given byte array.
      • getBytes

        public static byte[] getBytes​(byte b)
        Returns the bytes corresponding to the ASCII hex encoding of the given byte.
      • getBytes

        public static byte[] getBytes​(byte[] bytes)
        Returns the bytes corresponding to the ASCII hex encoding of the given bytes.
      • getChars

        public static char[] getChars​(short num)
        Returns the characters corresponding to the ASCII hex encoding of the given short.
      • getCharsUTF16BE

        public static char[] getCharsUTF16BE​(java.lang.String text)
        Takes the characters in the given string, convert it to bytes in UTF16-BE format and build a char array that corresponds to the ASCII hex encoding of the resulting bytes. Example:
           getCharsUTF16BE("ab") == new char[]{'0','0','6','1','0','0','6','2'}
         
        Parameters:
        text - The string to convert
        Returns:
        The string converted to hex
      • writeHexByte

        public static void writeHexByte​(byte b,
                                        java.io.OutputStream output)
                                 throws java.io.IOException
        Writes the given byte as hex value to the given output stream.
        Parameters:
        b - the byte to be written
        output - the output stream to be written to
        Throws:
        java.io.IOException - exception if anything went wrong
      • writeHexBytes

        public static void writeHexBytes​(byte[] bytes,
                                         java.io.OutputStream output)
                                  throws java.io.IOException
        Writes the given byte array as hex value to the given output stream.
        Parameters:
        bytes - the byte array to be written
        output - the output stream to be written to
        Throws:
        java.io.IOException - exception if anything went wrong