Apache Commons Math 3.6.1 · org.apache.commons.math3.random.RandomGenerator

Method Summary

Modifier and Type	Method and Description
public boolean	Returns: the next pseudorandom, uniformly distributed `boolean` value from this random number generator's sequence nextBoolean() Returns the next pseudorandom, uniformly distributed `boolean` value from this random number generator's sequence.
public void	nextBytes(byte[] the non-null byte array in which to put the random bytes bytes) Generates random bytes and places them into a user-supplied byte array.
public double	Returns: the next pseudorandom, uniformly distributed `double` value between `0.0` and `1.0` from this random number generator's sequence nextDouble() Returns the next pseudorandom, uniformly distributed `double` value between `0.0` and `1.0` from this random number generator's sequence.
public float	Returns: the next pseudorandom, uniformly distributed `float` value between `0.0` and `1.0` from this random number generator's sequence nextFloat() Returns the next pseudorandom, uniformly distributed `float` value between `0.0` and `1.0` from this random number generator's sequence.
public double	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 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.
public int	Returns: the next pseudorandom, uniformly distributed `int` value from this random number generator's sequence nextInt() Returns the next pseudorandom, uniformly distributed `int` value from this random number generator's sequence.
public int	Returns: a pseudorandom, uniformly distributed `int` value between 0 (inclusive) and n (exclusive). nextInt(int the bound on the random number to be returned. Must be positive. n) Returns a pseudorandom, uniformly distributed `int` value between 0 (inclusive) and the specified value (exclusive), drawn from this random number generator's sequence.
public long	Returns: the next pseudorandom, uniformly distributed `long` value from this random number generator's sequence nextLong() Returns the next pseudorandom, uniformly distributed `long` value from this random number generator's sequence.
public void	setSeed(int the seed value seed) Sets the seed of the underlying random number generator using an `int` seed.
public void	setSeed(int[] the seed value seed) Sets the seed of the underlying random number generator using an `int` array seed.
public void	setSeed(long the seed value seed) Sets the seed of the underlying random number generator using a `long` seed.

Method Detail

nextBoolean back to summary

nextBoolean	back to summary
public boolean nextBoolean() Returns the next pseudorandom, uniformly distributed `boolean` value from this random number generator's sequence. Returns:boolean the next pseudorandom, uniformly distributed `boolean` value from this random number generator's sequence

public boolean nextBoolean()

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

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

nextBytes	back to summary
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. Parameters bytes:byte[] the non-null byte array in which to put the random bytes

nextBytes

back to summary

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.

Parameters

bytes:byte[]: the non-null byte array in which to put the random bytes

nextDouble back to summary

nextDouble	back to summary
public double nextDouble() Returns the next pseudorandom, uniformly distributed `double` value between `0.0` and `1.0` from this random number generator's sequence. Returns:double the next pseudorandom, uniformly distributed `double` value between `0.0` and `1.0` from this random number generator's sequence

public double nextDouble()

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

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

nextFloat back to summary

nextFloat	back to summary
public float nextFloat() Returns the next pseudorandom, uniformly distributed `float` value between `0.0` and `1.0` from this random number generator's sequence. Returns:float the next pseudorandom, uniformly distributed `float` value between `0.0` and `1.0` from this random number generator's sequence

public float nextFloat()

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

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

nextGaussian back to summary

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

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.

Returns:double: 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 back to summary

nextInt	back to summary
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. Returns:int the next pseudorandom, uniformly distributed `int` value from this random number generator's sequence

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.

Returns:int: the next pseudorandom, uniformly distributed int value from this random number generator's sequence

nextInt back to summary

nextInt	back to summary
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. Parameters n:int the bound on the random number to be returned. Must be positive. Returns:int a pseudorandom, uniformly distributed `int` value between 0 (inclusive) and n (exclusive). Exceptions IllegalArgumentException: if n is not positive.

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.

Parameters

n:int: the bound on the random number to be returned. Must be positive.

Returns:int

a pseudorandom, uniformly distributed int value between 0 (inclusive) and n (exclusive).

Exceptions

IllegalArgumentException:: if n is not positive.

nextLong back to summary

nextLong	back to summary
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. Returns:long the next pseudorandom, uniformly distributed `long` value from this random number generator's sequence

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.

Returns:long: the next pseudorandom, uniformly distributed long value from this random number generator's sequence

setSeed back to summary

setSeed	back to summary
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. Parameters seed:int the seed value

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.

Parameters

seed:int: the seed value

setSeed back to summary

setSeed	back to summary
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. Parameters seed:int[] the seed value

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.

Parameters

seed:int[]: the seed value

setSeed back to summary

setSeed	back to summary
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. Parameters seed:long the seed value

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.

Parameters

seed:long: the seed value

public Interface RandomGenerator

Method Summary

Method Detail