org.mmbase.util
Class RandomThings

java.lang.Object
  org.mmbase.util.RandomThings

public class RandomThings

extends java.lang.Object

Class for doing random things.

Author:

Rico Jansen

Constructor Summary

RandomThings()

Method Summary

static java.util.Vector	giveRandomFrom(java.util.Vector v, int max) Return 'max' random elements from a Vector.
static void	main(java.lang.String[] args) entrypoint for calling this class from the commandline For testing
static void	shuffleArray(int[] arr) Shuffle an integer array
static java.util.Vector	shuffleCloneVector(java.util.Vector v) Return a new Shuffled vector
static void	shuffleVector(java.util.Vector v) Shuffle a Vector until it is a Random mess

Methods inherited from class java.lang.Object

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

Constructor Detail

RandomThings

public RandomThings()

Method Detail

shuffleVector

public static void shuffleVector(java.util.Vector v)

Shuffle a Vector until it is a Random mess

shuffleCloneVector

public static java.util.Vector shuffleCloneVector(java.util.Vector v)

Return a new Shuffled vector

shuffleArray

public static void shuffleArray(int[] arr)

Shuffle an integer array

giveRandomFrom

public static java.util.Vector giveRandomFrom(java.util.Vector v,
                                              int max)

Return 'max' random elements from a Vector. No duplicates will be given.

main

public static void main(java.lang.String[] args)

entrypoint for calling this class from the commandline For testing