net.sourceforge.cilib.math.random.generator
Class KnuthSubtractive

java.lang.Object
  java.util.Random
      net.sourceforge.cilib.math.random.generator.Random
          net.sourceforge.cilib.math.random.generator.KnuthSubtractive

All Implemented Interfaces:

Serializable, Cloneable

public class KnuthSubtractive
extends Random

An implementation of Knuth's subtractive random number generator. This generator is relatively fast but is not considered simulation quality.

This code is based on the implementation in GSL (GNU Scientific Library) which is also covered by the GNU General Public License. The original C source code is Copyright (C) 1996, 1997, 1998, 1999, 2000 James Theiler and Brian Gough.

Author:

Edwin Peer

See Also:

Serialized Form

Constructor Summary

KnuthSubtractive()
Create an instance of KnuthSubtractive.

KnuthSubtractive(long seed)
Create an instance, with the given seed value.

Method Summary

KnuthSubtractive	getClone() Create a cloned copy of the current object and return it.
protected int	next(int bits)
void	setSeed(long seed)

Methods inherited from class java.util.Random

nextBoolean, nextBytes, nextDouble, nextFloat, nextGaussian, nextInt, nextInt, nextLong

Methods inherited from class java.lang.Object

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

Constructor Detail

KnuthSubtractive

public KnuthSubtractive()

Create an instance of KnuthSubtractive.

KnuthSubtractive

public KnuthSubtractive(long seed)

Create an instance, with the given seed value.

Parameters:

seed - The seed value.

Method Detail

getClone

public KnuthSubtractive getClone()

Create a cloned copy of the current object and return it. In general the created copy will be a deep copy of the provided instance. As a result this operation an be quite expensive if used incorrectly.

Specified by:

getClone in interface Cloneable

Specified by:

getClone in class Random

Returns:

An exact clone of the current object instance.

See Also:

Object.clone()

setSeed

public void setSeed(long seed)

Overrides:

setSeed in class Random

next

protected int next(int bits)

Overrides:

next in class Random