com.eibus.util

Class Random

java.lang.Object

com.eibus.util.Random

public class Random
extends java.lang.Object

This class provides some 'random' like utilities not available in the standard Java libraries.

Constructor Summary

Constructors

Constructor and Description
Random()

Method Summary

Methods

Modifier and Type	Method and Description
static void	swapRandom(java.lang.Object[] source, java.lang.Object[] target) Picks a random number between 0 and source.length and will then re-order the target array with the elements of the source array.

Methods inherited from class java.lang.Object

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

Constructor Detail

Random

public Random()

Method Detail

swapRandom

public static void swapRandom(java.lang.Object[] source,
              java.lang.Object[] target)

Picks a random number between 0 and source.length and will then re-order the target array with the elements of the source array. The basic algorithm is very simple. The order of the target array will be the same as the order of the source array, but the starting point will be different. Note, the source and target array should be of the same length. Also, this function has no use if the source array has less than 2 elements.

Parameters:

source - An array of objects that needs to be ordered randomly.

target - An array with the same size as the source array into which the elements of the source will be put.