com.antelmann.math
Class Permutation

java.lang.Object
  com.antelmann.math.Permutation

All Implemented Interfaces:

Enumeration<int[]>

public class Permutation
extends Object
implements Enumeration<int[]>

derived from public domain sources (http://www.merriampark.com/perm.htm)

Author:

Holger Antelmann

Constructor Summary

Permutation(int n)

Method Summary

int[]	currentElement()
BigInteger	getTotal()
boolean	hasMoreElements()
int[]	nextElement() returns always the same array, so DO NOT alter the content of this array
BigInteger	permutationsLeft()
void	reset()

Methods inherited from class java.lang.Object

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

Constructor Detail

Permutation

public Permutation(int n)

Method Detail

reset

public void reset()

permutationsLeft

public BigInteger permutationsLeft()

getTotal

public BigInteger getTotal()

hasMoreElements

public boolean hasMoreElements()

Specified by:

hasMoreElements in interface Enumeration<int[]>

currentElement

public int[] currentElement()

nextElement

public int[] nextElement()

returns always the same array, so DO NOT alter the content of this array

Specified by:

nextElement in interface Enumeration<int[]>