de.rtner.misc

Class BinTools

java.lang.Object

de.rtner.misc.BinTools

public class BinTools
extends java.lang.Object

Free auxiliary functions

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	hex

Constructor Summary

Constructors

Constructor and Description
BinTools()

Method Summary

Modifier and Type	Method and Description
static java.lang.String	bin2hex(byte[] b) Simple binary-to-hexadecimal conversion.
static int	hex2bin(char c) Convert hex digit to numerical value.
static byte[]	hex2bin(java.lang.String s) Convert hex string to array of bytes.
static void	main(java.lang.String[] args)

Methods inherited from class java.lang.Object

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

Field Detail

hex

public static final java.lang.String hex

See Also:

Constant Field Values

Constructor Detail

BinTools

public BinTools()

Method Detail

bin2hex

public static java.lang.String bin2hex(byte[] b)

Simple binary-to-hexadecimal conversion.

Parameters:

b - Input bytes. May be null.

Returns:

Hexadecimal representation of b. Uppercase A-F, two characters per byte. Empty string on null input.

hex2bin

public static byte[] hex2bin(java.lang.String s)

Convert hex string to array of bytes.

Parameters:

s - String containing hexadecimal digits. May be null. On odd length leading zero will be assumed.

Returns:

Array on bytes, non-null.

Throws:

java.lang.IllegalArgumentException - when string contains non-hex character

hex2bin

public static int hex2bin(char c)

Convert hex digit to numerical value.

Parameters:

c - 0-9, a-f, A-F allowd.

Returns:

0-15

Throws:

java.lang.IllegalArgumentException - on non-hex character

main

public static void main(java.lang.String[] args)