de.intarsys.tools.hex
Class HexTools

java.lang.Object
  de.intarsys.tools.hex.HexTools

public class HexTools
extends java.lang.Object

Helper class for faster mapping of bytes to their hex equivalent

Field Summary

static byte[][]	ByteToHex ASCII byte values for the hex strings.
static byte[][]	byteToHexLower ASCII byte values for the hex strings.

Constructor Summary

HexTools()

Method Summary

static java.lang.String	bytesToHexString(byte[] data)
static java.lang.String	bytesToHexString(byte[] data, int offset, int length)
static java.lang.String	bytesToHexString(byte[] data, int offset, int length, boolean space)
static int	hexDigitToInt(char c) The numeric value for the hex digit, return -1 if not valid digit
static byte[]	hexStringToBytes(java.lang.String hexString)
static int	hexStringToInt(java.lang.String hexString)
static boolean	isHexDigit(char i) Evaluate to true if i is a valid hex digit

Methods inherited from class java.lang.Object

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

Field Detail

ByteToHex

public static final byte[][] ByteToHex

ASCII byte values for the hex strings.

byteToHexLower

public static final byte[][] byteToHexLower

ASCII byte values for the hex strings.

Constructor Detail

HexTools

public HexTools()

Method Detail

bytesToHexString

public static java.lang.String bytesToHexString(byte[] data)

bytesToHexString

public static java.lang.String bytesToHexString(byte[] data,
                                                int offset,
                                                int length)

bytesToHexString

public static java.lang.String bytesToHexString(byte[] data,
                                                int offset,
                                                int length,
                                                boolean space)

hexDigitToInt

public static int hexDigitToInt(char c)

The numeric value for the hex digit, return -1 if not valid digit

Parameters:

c - A char representing a hex digit.

Returns:

The numeric value of the hex digit

hexStringToBytes

public static byte[] hexStringToBytes(java.lang.String hexString)

hexStringToInt

public static int hexStringToInt(java.lang.String hexString)

isHexDigit

public static boolean isHexDigit(char i)

Evaluate to true if i is a valid hex digit

Parameters:

i - A char representing a hex digit.

Returns:

true if i is a valid hex digit.