Overview | Package | Class | Use | Tree | Deprecated | Index | Help
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD

## org.apache.commons.math3.random
Class RandomAdaptor

    java.lang.Object
      java.util.Random
          org.apache.commons.math3.random.RandomAdaptor

All Implemented Interfaces:
  Serializable, RandomGenerator

    public class RandomAdaptor

extends Random
implements RandomGenerator

Extension of `java.util.Random` wrapping a `RandomGenerator`.

Since:
  1.1
Version:
  $Id: RandomAdaptor.java 1416643 2012-12-03 19:37:14Z tn $
See Also:
  Serialized Form

Constructor Summary
`RandomAdaptor(RandomGenerator randomGenerator)` Construct a RandomAdaptor wrapping the supplied RandomGenerator.

Method Summary
`static Random` | `createAdaptor(RandomGenerator randomGenerator)` Factory method to create a `Random` using the supplied `RandomGenerator`.
`boolean` | `nextBoolean()` Returns the next pseudorandom, uniformly distributed `boolean` value from this random number generator's sequence.
`void` | `nextBytes(byte[] bytes)` Generates random bytes and places them into a user-supplied byte array.
`double` | `nextDouble()` Returns the next pseudorandom, uniformly distributed `double` value between `0.0` and `1.0` from this random number generator's sequence.
`float` | `nextFloat()` Returns the next pseudorandom, uniformly distributed `float` value between `0.0` and `1.0` from this random number generator's sequence.
`double` | `nextGaussian()` Returns the next pseudorandom, Gaussian ("normally") distributed `double` value with mean `0.0` and standard deviation `1.0` from this random number generator's sequence.
`int` | `nextInt()` Returns the next pseudorandom, uniformly distributed `int` value from this random number generator's sequence.
`int` | `nextInt(int n)` Returns a pseudorandom, uniformly distributed `int` value between 0 (inclusive) and the specified value (exclusive), drawn from this random number generator's sequence.
`long` | `nextLong()` Returns the next pseudorandom, uniformly distributed `long` value from this random number generator's sequence.
`void` | `setSeed(int seed)` Sets the seed of the underlying random number generator using an `int` seed.
`void` | `setSeed(int[] seed)` Sets the seed of the underlying random number generator using an `int` array seed.
`void` | `setSeed(long seed)` Sets the seed of the underlying random number generator using a `long` seed.

Methods inherited from class java.util.Random
`next`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### RandomAdaptor

    public RandomAdaptor(RandomGenerator randomGenerator)

  Construct a RandomAdaptor wrapping the supplied RandomGenerator.

  Parameters:
    `randomGenerator` - the wrapped generator

Method Detail

### createAdaptor

    public static Random createAdaptor(RandomGenerator randomGenerator)

  Factory method to create a `Random` using the supplied `RandomGenerator`.

  Parameters:
    `randomGenerator` - wrapped RandomGenerator instance
  Returns:
    a Random instance wrapping the RandomGenerator

### nextBoolean

    public boolean nextBoolean()

  Returns the next pseudorandom, uniformly distributed `boolean` value from this random number generator's sequence.

  Specified by:
    `nextBoolean` in interface `RandomGenerator`
  Overrides:
    `nextBoolean` in class `Random`
  Returns:
    the next pseudorandom, uniformly distributed `boolean` value from this random number generator's sequence

### nextBytes

    public void nextBytes(byte[] bytes)

  Generates random bytes and places them into a user-supplied byte array. The number of random bytes produced is equal to the length of the byte array.

  Specified by:
    `nextBytes` in interface `RandomGenerator`
  Overrides:
    `nextBytes` in class `Random`
  Parameters:
    `bytes` - the non-null byte array in which to put the random bytes

### nextDouble

    public double nextDouble()

  Returns the next pseudorandom, uniformly distributed `double` value between `0.0` and `1.0` from this random number generator's sequence.

  Specified by:
    `nextDouble` in interface `RandomGenerator`
  Overrides:
    `nextDouble` in class `Random`
  Returns:
    the next pseudorandom, uniformly distributed `double` value between `0.0` and `1.0` from this random number generator's sequence

### nextFloat

    public float nextFloat()

  Returns the next pseudorandom, uniformly distributed `float` value between `0.0` and `1.0` from this random number generator's sequence.

  Specified by:
    `nextFloat` in interface `RandomGenerator`
  Overrides:
    `nextFloat` in class `Random`
  Returns:
    the next pseudorandom, uniformly distributed `float` value between `0.0` and `1.0` from this random number generator's sequence

### nextGaussian

    public double nextGaussian()

  Returns the next pseudorandom, Gaussian ("normally") distributed `double` value with mean `0.0` and standard deviation `1.0` from this random number generator's sequence.

  Specified by:
    `nextGaussian` in interface `RandomGenerator`
  Overrides:
    `nextGaussian` in class `Random`
  Returns:
    the next pseudorandom, Gaussian ("normally") distributed `double` value with mean `0.0` and standard deviation `1.0` from this random number generator's sequence

### nextInt

    public int nextInt()

  Returns the next pseudorandom, uniformly distributed `int` value from this random number generator's sequence. All 232 possible `int` values should be produced with (approximately) equal probability.

  Specified by:
    `nextInt` in interface `RandomGenerator`
  Overrides:
    `nextInt` in class `Random`
  Returns:
    the next pseudorandom, uniformly distributed `int` value from this random number generator's sequence

### nextInt

    public int nextInt(int n)

  Returns a pseudorandom, uniformly distributed `int` value between 0 (inclusive) and the specified value (exclusive), drawn from this random number generator's sequence.

  Specified by:
    `nextInt` in interface `RandomGenerator`
  Overrides:
    `nextInt` in class `Random`
  Parameters:
    `n` - the bound on the random number to be returned. Must be positive.
  Returns:
    a pseudorandom, uniformly distributed `int` value between 0 (inclusive) and n (exclusive).
  Throws:
    `IllegalArgumentException` - if n is not positive.

### nextLong

    public long nextLong()

  Returns the next pseudorandom, uniformly distributed `long` value from this random number generator's sequence. All 264 possible `long` values should be produced with (approximately) equal probability.

  Specified by:
    `nextLong` in interface `RandomGenerator`
  Overrides:
    `nextLong` in class `Random`
  Returns:
    the next pseudorandom, uniformly distributed `long` value from this random number generator's sequence

### setSeed

    public void setSeed(int seed)

  Sets the seed of the underlying random number generator using an `int` seed.

  Sequences of values generated starting with the same seeds should be identical.

  Specified by:
    `setSeed` in interface `RandomGenerator`
  Parameters:
    `seed` - the seed value

### setSeed

    public void setSeed(int[] seed)

  Sets the seed of the underlying random number generator using an `int` array seed.

  Sequences of values generated starting with the same seeds should be identical.

  Specified by:
    `setSeed` in interface `RandomGenerator`
  Parameters:
    `seed` - the seed value

### setSeed

    public void setSeed(long seed)

  Sets the seed of the underlying random number generator using a `long` seed.

  Sequences of values generated starting with the same seeds should be identical.

  Specified by:
    `setSeed` in interface `RandomGenerator`
  Overrides:
    `setSeed` in class `Random`
  Parameters:
    `seed` - the seed value

Overview | Package | Class | Use | Tree | Deprecated | Index | Help
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD

Copyright © 2003-2013 The Apache Software Foundation. All Rights Reserved.