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java.lang.Objectjava.util.Random
org.apache.commons.math.random.RandomAdaptor
public class RandomAdaptor
Extension of java.util.Random wrapping a
RandomGenerator.
| 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 |
|---|
public RandomAdaptor(RandomGenerator randomGenerator)
randomGenerator - the wrapped generator| Method Detail |
|---|
public static Random createAdaptor(RandomGenerator randomGenerator)
Random using the supplied
RandomGenerator.
randomGenerator - wrapped RandomGenerator instance
public boolean nextBoolean()
boolean value from this random number generator's
sequence.
nextBoolean in interface RandomGeneratornextBoolean in class Randomboolean value from this random number generator's
sequencepublic void nextBytes(byte[] bytes)
nextBytes in interface RandomGeneratornextBytes in class Randombytes - the non-null byte array in which to put the
random bytespublic double nextDouble()
double value between 0.0 and
1.0 from this random number generator's sequence.
nextDouble in interface RandomGeneratornextDouble in class Randomdouble value between 0.0 and
1.0 from this random number generator's sequencepublic float nextFloat()
float
value between 0.0 and 1.0 from this random
number generator's sequence.
nextFloat in interface RandomGeneratornextFloat in class Randomfloat
value between 0.0 and 1.0 from this
random number generator's sequencepublic double nextGaussian()
double value with mean 0.0 and standard
deviation 1.0 from this random number generator's sequence.
nextGaussian in interface RandomGeneratornextGaussian in class Randomdouble value with mean 0.0 and
standard deviation 1.0 from this random number
generator's sequencepublic int nextInt()
int
value from this random number generator's sequence.
All 232 possible int values
should be produced with (approximately) equal probability.
nextInt in interface RandomGeneratornextInt in class Randomint
value from this random number generator's sequencepublic int nextInt(int n)
nextInt in interface RandomGeneratornextInt in class Randomn - the bound on the random number to be returned. Must be
positive.
IllegalArgumentException - if n is not positive.public long nextLong()
long
value from this random number generator's sequence. All
264 possible long values
should be produced with (approximately) equal probability.
nextLong in interface RandomGeneratornextLong in class Randomlong
value from this random number generator's sequencepublic void setSeed(int seed)
int seed.
Sequences of values generated starting with the same seeds should be identical.
setSeed in interface RandomGeneratorseed - the seed valuepublic void setSeed(int[] seed)
int array seed.
Sequences of values generated starting with the same seeds should be identical.
setSeed in interface RandomGeneratorseed - the seed valuepublic void setSeed(long seed)
long seed.
Sequences of values generated starting with the same seeds should be identical.
setSeed in interface RandomGeneratorsetSeed in class Randomseed - the seed value
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