ikr.simlib.random

Class RandomNumberGenerator

java.lang.Object

ikr.simlib.random.RandomNumberGenerator

Direct Known Subclasses:

IndependentRNGFactory.WarningRNG, JavaRandomNumberGenerator, StdRandomNumberGenerator

public abstract class RandomNumberGenerator
extends java.lang.Object

RandomNumberGenerator is the abstract base class for all random number generators. New generators just have to override next() to provide new numbers for each call.

Usually only one RNG object is used in a simulation. Therefore a global RNG is created that can be accessed by the static member function getSystemRNG() of RandomNumberGenerator.

Several standard RNGs are provided.

Field Summary

Fields

Modifier and Type	Field and Description
protected static RandomNumberGenerator	SYSTEM_RNG

Constructor Summary

Constructors

Constructor and Description
RandomNumberGenerator()

Method Summary

Methods

Modifier and Type	Method and Description
static RandomNumberGenerator	getSystemRNG()
abstract double	next()
static void	setSystemRNG(RandomNumberGenerator rng)

Methods inherited from class java.lang.Object

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

Field Detail

SYSTEM_RNG

protected static RandomNumberGenerator SYSTEM_RNG

Constructor Detail

RandomNumberGenerator

public RandomNumberGenerator()

Method Detail

getSystemRNG

public static RandomNumberGenerator getSystemRNG()

setSystemRNG

public static void setSystemRNG(RandomNumberGenerator rng)

next

public abstract double next()

Returns:

a new random value.