info.ephyra.util
Class ArrayUtils

java.lang.Object
  info.ephyra.util.ArrayUtils

public class ArrayUtils
extends java.lang.Object

A collection of array transformation utilities.

Version:

2007-05-03

Author:

Nico Schlaefer

Constructor Summary

ArrayUtils()

Method Summary

static java.lang.Object[][]	getAllSubsets(java.lang.Object[] objects) Gets all subsets of the given array of objects.
private static void	getAllSubsetsRec(java.util.ArrayList<java.lang.Object[]> subsets, java.util.ArrayList<java.lang.Object> subset, java.lang.Object[] objects, int i)
static java.lang.Object[][]	getNonemptySubsets(java.lang.Object[] objects) Gets all non-empty subsets of the given array of objects.

Methods inherited from class java.lang.Object

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

Constructor Detail

ArrayUtils

public ArrayUtils()

Method Detail

getAllSubsets

public static java.lang.Object[][] getAllSubsets(java.lang.Object[] objects)

Gets all subsets of the given array of objects.

Parameters:

objects - array of objects

Returns:

all subsets

getAllSubsetsRec

private static void getAllSubsetsRec(java.util.ArrayList<java.lang.Object[]> subsets,
                                     java.util.ArrayList<java.lang.Object> subset,
                                     java.lang.Object[] objects,
                                     int i)

getNonemptySubsets

public static java.lang.Object[][] getNonemptySubsets(java.lang.Object[] objects)

Gets all non-empty subsets of the given array of objects.

Parameters:

objects - array of objects

Returns:

all non-empty subsets