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

Fields

Modifier and Type	Field and Description
static byte[][]	ByteToHex ASCII byte values for the hex strings.
static byte[][]	byteToHexLower ASCII byte values for the hex strings.

Constructor Summary

Constructors

Constructor and Description
HexTools()

Method Summary

Modifier and Type	Method and Description
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.