Opus5
Class RandomNumberGenerator

java.lang.Object
  |
  +--Opus5.RandomNumberGenerator

public final class RandomNumberGenerator

extends java.lang.Object

A multiplicative linear congruential pseudo-random number generator. Adapted from the minimal standard pseudo-random number generator described in Stephen K. Park and Keith W. Miller, "Random Number Generators: Good Ones Are Hard To Find," Communications of the ACM, Vol. 31, No. 10, Oct. 1988, pp. 1192-1201.

Version:

$Id: RandomNumberGenerator.java,v 3.2 1998/07/28 02:09:16 brpreiss Exp $

Author:

Bruno R. Preiss, P.Eng.

Method Summary

static double	nextDouble() Returns the next pseudo-random number in the sequence.
static void	setSeed(int s) Sets the seed to the specified value.

Methods inherited from class java.lang.Object

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

Method Detail

setSeed

public static void setSeed(int s)

Sets the seed to the specified value.

Parameters:

s - The desired seed.

Throws:

java.lang.IllegalArgumentException - If the specified value is zero.

nextDouble

public static double nextDouble()

Returns the next pseudo-random number in the sequence. The numbers returned are uniformly distributed in the interval (0,1].

Returns:

The next pseudo-random number in the sequence.