org.apache.commons.io

Class HexDump

public class HexDump extends Object

Dumps data in hexadecimal format.

Provides a single function to take an array of bytes and display it in hexadecimal form.

Origin of code: POI.

Version: $Id: HexDump.java 437680 2006-08-28 11:57:00Z scolebourne $

Author: Scott Sanders Marc Johnson

Field Summary
static StringEOL
The line-separator (initializes to "line.separator" system property.
static StringBuffer_cbuffer
static char[]_hexcodes
static StringBuffer_lbuffer
static int[]_shifts
Constructor Summary
HexDump()
Instances should NOT be constructed in standard programming.
Method Summary
static voiddump(byte[] data, long offset, OutputStream stream, int index)
Dump an array of bytes to an OutputStream.
static StringBufferdump(long value)
Dump a long value into a StringBuffer.
static StringBufferdump(byte value)
Dump a byte value into a StringBuffer.

Field Detail

EOL

public static final String EOL
The line-separator (initializes to "line.separator" system property.

_cbuffer

private static final StringBuffer _cbuffer

_hexcodes

private static final char[] _hexcodes

_lbuffer

private static final StringBuffer _lbuffer

_shifts

private static final int[] _shifts

Constructor Detail

HexDump

public HexDump()
Instances should NOT be constructed in standard programming.

Method Detail

dump

public static void dump(byte[] data, long offset, OutputStream stream, int index)
Dump an array of bytes to an OutputStream.

Parameters: data the byte array to be dumped offset its offset, whatever that might mean stream the OutputStream to which the data is to be written index initial index into the byte array

Throws: IOException is thrown if anything goes wrong writing the data to stream ArrayIndexOutOfBoundsException if the index is outside the data array's bounds IllegalArgumentException if the output stream is null

dump

private static StringBuffer dump(long value)
Dump a long value into a StringBuffer.

Parameters: value the long value to be dumped

Returns: StringBuffer containing the dumped value.

dump

private static StringBuffer dump(byte value)
Dump a byte value into a StringBuffer.

Parameters: value the byte value to be dumped

Returns: StringBuffer containing the dumped value.