Package org.apache.commons.rng.simple

Class JDKRandomWrapper

java.lang.Object

org.apache.commons.rng.simple.JDKRandomWrapper

All Implemented Interfaces:

org.apache.commons.rng.UniformRandomProvider

public final class JDKRandomWrapper
extends Object
implements org.apache.commons.rng.UniformRandomProvider

Wraps a Random instance to implement UniformRandomProvider. All methods from the Random that match those in UniformRandomProvider are used directly.

This class can be used to wrap an instance of SecureRandom. The SecureRandom class provides cryptographic random number generation. The features available depend on the Java version and platform. Consult the Java documentation for more details.

Note: Use of java.util.Random is not recommended for applications. There are many other pseudo-random number generators that are statistically superior and often faster (see RandomSource).

Since:

1.3

See Also:

SecureRandom, RandomSource

Constructor Summary

Constructors

Constructor	Description
JDKRandomWrapper(Random rng)	Create a wrapper around a Random instance.

Method Summary

Modifier and Type	Method	Description
boolean	nextBoolean()
void	nextBytes(byte[] bytes)
void	nextBytes(byte[] bytes, int start, int len)
double	nextDouble()
float	nextFloat()
int	nextInt()
int	nextInt(int n)
long	nextLong()
long	nextLong(long n)

Methods inherited from class java.lang.Object

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

Constructor Detail

JDKRandomWrapper

public JDKRandomWrapper(Random rng)

Create a wrapper around a Random instance.

Parameters:

rng - JDK Random instance to which the random number generation is delegated.

Method Detail

nextBytes

public void nextBytes(byte[] bytes)

Specified by:

nextBytes in interface org.apache.commons.rng.UniformRandomProvider

nextBytes

public void nextBytes(byte[] bytes,
                      int start,
                      int len)

Specified by:

nextBytes in interface org.apache.commons.rng.UniformRandomProvider

nextInt

public int nextInt()

Specified by:

nextInt in interface org.apache.commons.rng.UniformRandomProvider

nextInt

public int nextInt(int n)

Specified by:

nextInt in interface org.apache.commons.rng.UniformRandomProvider

nextLong

public long nextLong()

Specified by:

nextLong in interface org.apache.commons.rng.UniformRandomProvider

nextLong

public long nextLong(long n)

Specified by:

nextLong in interface org.apache.commons.rng.UniformRandomProvider

nextBoolean

public boolean nextBoolean()

Specified by:

nextBoolean in interface org.apache.commons.rng.UniformRandomProvider

nextFloat

public float nextFloat()

Specified by:

nextFloat in interface org.apache.commons.rng.UniformRandomProvider

nextDouble

public double nextDouble()

Specified by:

nextDouble in interface org.apache.commons.rng.UniformRandomProvider