| java.lang.Object
 org.apache.catalina.util.HexUtils
| HexUtils | | final public class HexUtils (Code) | | Library of utility methods useful in dealing with converting byte arrays
to and from strings of hexadecimal digits.
Note: this package has been stripped of its localization capabilities,
to lessen library dependencies and increase portability.
- ARJ, 4/04
author:
Craig R. McClanahan
since:
2.3 |
| Field Summary | |
| final static int[] | DEC
|
| Method Summary | |
| 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. | | public static String | convert(byte[] bytes)
Convert a byte array into a printable format containing a
String of hexadecimal digit characters (two per byte). | | public static int | convert2Int(byte[] hex)
Convert 4 hex digits to an int, and return the number of converted
bytes. |
| DEC | | final static int[] DEC(Code) | | |
| convert | | public static byte[] convert(String digits)(Code) | | 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
exception:
IllegalArgumentException - if an invalid hexadecimal digitis found, or the input string contains an odd number of hexadecimaldigits |
| convert | | public static String convert(byte[] bytes)(Code) | | Convert a byte array into a printable format containing a
String of hexadecimal digit characters (two per byte).
Parameters:
bytes - Byte array representation |
| convert2Int | | public static int convert2Int(byte[] hex)(Code) | | Convert 4 hex digits to an int, and return the number of converted
bytes.
Parameters:
hex - Byte array containing exactly four hexadecimal digits
exception:
IllegalArgumentException - if an invalid hexadecimal digitis included |
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