org.apache.poi.util

Class ArrayUtil

java.lang.Object

org.apache.poi.util.ArrayUtil

public class ArrayUtil
extends java.lang.Object

Utility classes for dealing with arrays.

Author:

Glen Stampoultzis

Constructor Summary

Constructors

Constructor and Description
ArrayUtil()

Method Summary

Modifier and Type	Method and Description
static void	arraycopy(byte[] src, int src_position, byte[] dst, int dst_position, int length) This is really a debugging version of System.arraycopy().
static void	arrayMoveWithin(java.lang.Object[] array, int moveFrom, int moveTo, int numToMove) Moves a number of entries in an array to another point in the array, shifting those inbetween as required.

Methods inherited from class java.lang.Object

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

Constructor Detail

ArrayUtil

public ArrayUtil()

Method Detail

arraycopy

public static void arraycopy(byte[] src,
                             int src_position,
                             byte[] dst,
                             int dst_position,
                             int length)

This is really a debugging version of System.arraycopy(). Use it to provide better exception messages when copying arrays around. For production use it's better to use the original for speed.

arrayMoveWithin

public static void arrayMoveWithin(java.lang.Object[] array,
                                   int moveFrom,
                                   int moveTo,
                                   int numToMove)

Moves a number of entries in an array to another point in the array, shifting those inbetween as required.

Parameters:

array - The array to alter

moveFrom - The (0 based) index of the first entry to move

moveTo - The (0 based) index of the positition to move to

numToMove - The number of entries to move