org.debellor.core.util
Class Permute

java.lang.Object
  org.debellor.core.util.Permute

public class Permute
extends java.lang.Object

Author:

Marcin Wojnarski

Constructor Summary

Permute()

Method Summary

static int[]	indices(int range)
static int[]	indices(int range, int length, java.util.Random random) Generates random combination of integers from [0,range), of length length, without repetitions.
static int[]	indices(int range, java.util.Random random)

Methods inherited from class java.lang.Object

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

Constructor Detail

Permute

public Permute()

Method Detail

indices

public static int[] indices(int range,
                            int length,
                            java.util.Random random)

Generates random combination of integers from [0,range), of length length, without repetitions.

Parameters:

range - Values will be picked randomly from [0,range) interval

length - Number of returned values. Must be <= range

random - Random number generator to be used

Returns:

Random combination of integers from [0,range), of length length, without repetitions.

indices

public static int[] indices(int range,
                            java.util.Random random)

indices

public static int[] indices(int range)