Added in API level 35

StreamableGenerator

interface StreamableGenerator : RandomGenerator

java.util.random.RandomGenerator.StreamableGenerator

Known Direct Subclasses

RandomGenerator.JumpableGenerator, RandomGenerator.SplittableGenerator

RandomGenerator.JumpableGenerator	This interface is designed to provide a common protocol for objects that generate pseudorandom values and can easily jump forward, by a moderate amount (ex. 2
RandomGenerator.SplittableGenerator	This interface is designed to provide a common protocol for objects that generate sequences of pseudorandom values and can be split into two objects (the original one and a new one) each of which obey that same protocol (and therefore can be recursively split indefinitely).

Known Indirect Subclasses

RandomGenerator.ArbitrarilyJumpableGenerator, RandomGenerator.LeapableGenerator, SplittableRandom

RandomGenerator.ArbitrarilyJumpableGenerator	This interface is designed to provide a common protocol for objects that generate sequences of pseudorandom values and can easily jump forward, by an arbitrary amount, to a distant point in the state cycle.
RandomGenerator.LeapableGenerator	This interface is designed to provide a common protocol for objects that generate sequences of pseudorandom values and can easily not only jump but also leap forward, by a large amount (ex. 2
SplittableRandom	A generator of uniform pseudorandom values (with period 264) applicable for use in (among other contexts) isolated parallel computations that may generate subtasks.

The StreamableGenerator interface augments the RandomGenerator interface to provide methods that return streams of RandomGenerator objects. Ideally, such a stream of objects would have the property that the behavior of each object is statistically independent of all the others. In practice, one may have to settle for some approximation to this property.

A generator that implements interface SplittableGenerator may choose to use its java.util.random.RandomGenerator.SplittableGenerator#splits() method to implement the java.util.random.RandomGenerator.StreamableGenerator#rngs() method required by this interface.

A generator that implements interface JumpableGenerator may choose to use its jumps() method to implement the rngs() method required by this interface.

A generator that implements interface LeapableGenerator may choose to use its leaps() method to implement the rngs() method required by this interface.

Objects that implement StreamableGenerator are typically not cryptographically secure. Consider instead using SecureRandom to get a cryptographically secure pseudo-random number generator for use by security-sensitive applications.

Summary

Public methods
open static RandomGenerator.StreamableGenerator!	`of(name: String!)` Returns an instance of `StreamableGenerator` that utilizes the `name` algorithm.
abstract Stream<RandomGenerator!>!	`rngs()` Returns an effectively unlimited stream of objects, each of which implements the `RandomGenerator` interface.
open Stream<RandomGenerator!>!	`rngs(streamSize: Long)` Returns an effectively unlimited stream of objects, each of which implements the `RandomGenerator` interface.

Inherited functions

From class RandomGenerator

`DoubleStream!`	`doubles()` Returns an effectively unlimited stream of pseudorandomly chosen `double` values.
`DoubleStream!`	`doubles(randomNumberOrigin: Double, randomNumberBound: Double)` Returns an effectively unlimited stream of pseudorandomly chosen `double` values, where each value is between the specified origin (inclusive) and the specified bound (exclusive).
`DoubleStream!`	`doubles(streamSize: Long)` Returns a stream producing the given `streamSize` number of pseudorandomly chosen `double` values.
`DoubleStream!`	`doubles(streamSize: Long, randomNumberOrigin: Double, randomNumberBound: Double)` Returns a stream producing the given `streamSize` number of pseudorandomly chosen `double` values, where each value is between the specified origin (inclusive) and the specified bound (exclusive).
`IntStream!`	`ints()` Returns an effectively unlimited stream of pseudorandomly chosen `int` values.
`IntStream!`	`ints(randomNumberOrigin: Int, randomNumberBound: Int)` Returns an effectively unlimited stream of pseudorandomly chosen `int` values, where each value is between the specified origin (inclusive) and the specified bound (exclusive).
`IntStream!`	`ints(streamSize: Long)` Returns a stream producing the given `streamSize` number of pseudorandomly chosen `int` values.
`IntStream!`	`ints(streamSize: Long, randomNumberOrigin: Int, randomNumberBound: Int)` Returns a stream producing the given `streamSize` number of pseudorandomly chosen `int` values, where each value is between the specified origin (inclusive) and the specified bound (exclusive).
`Boolean`	`isDeprecated()` Return true if the implementation of RandomGenerator (algorithm) has been marked for deprecation.
`LongStream!`	`longs()` Returns an effectively unlimited stream of pseudorandomly chosen `long` values.
`LongStream!`	`longs(streamSize: Long)` Returns a stream producing the given `streamSize` number of pseudorandomly chosen `long` values.
`LongStream!`	`longs(randomNumberOrigin: Long, randomNumberBound: Long)` Returns an effectively unlimited stream of pseudorandomly chosen `long` values, where each value is between the specified origin (inclusive) and the specified bound (exclusive).
`LongStream!`	`longs(streamSize: Long, randomNumberOrigin: Long, randomNumberBound: Long)` Returns a stream producing the given `streamSize` number of pseudorandomly chosen `long` values, where each value is between the specified origin (inclusive) and the specified bound (exclusive).
`Boolean`	`nextBoolean()` Returns a pseudorandomly chosen `boolean` value. The default implementation tests the high-order bit (sign bit) of a value produced by `nextInt`(), on the grounds that some algorithms for pseudorandom number generation produce values whose high-order bits have better statistical quality than the low-order bits.
`Unit`	`nextBytes(bytes: ByteArray!)` Fills a user-supplied byte array with generated byte values pseudorandomly chosen uniformly from the range of values between -128 (inclusive) and 127 (inclusive).
`Double`	`nextDouble()` Returns a pseudorandom `double` value between zero (inclusive) and one (exclusive).
`Double`	`nextDouble(bound: Double)` Returns a pseudorandomly chosen `double` value between zero (inclusive) and the specified bound (exclusive).
`Double`	`nextDouble(origin: Double, bound: Double)` Returns a pseudorandomly chosen `double` value between the specified origin (inclusive) and the specified bound (exclusive).
`Double`	`nextExponential()` Returns a nonnegative `double` value pseudorandomly chosen from an exponential distribution whose mean is 1.
`Float`	`nextFloat()` Returns a pseudorandom `float` value between zero (inclusive) and one (exclusive).
`Float`	`nextFloat(bound: Float)` Returns a pseudorandomly chosen `float` value between zero (inclusive) and the specified bound (exclusive).
`Float`	`nextFloat(origin: Float, bound: Float)` Returns a pseudorandomly chosen `float` value between the specified origin (inclusive) and the specified bound (exclusive).
`Double`	`nextGaussian()` Returns a `double` value pseudorandomly chosen from a Gaussian (normal) distribution whose mean is 0 and whose standard deviation is 1.
`Double`	`nextGaussian(mean: Double, stddev: Double)` Returns a `double` value pseudorandomly chosen from a Gaussian (normal) distribution with a mean and standard deviation specified by the arguments.
`Int`	`nextInt()` Returns a pseudorandomly chosen `int` value.
`Int`	`nextInt(bound: Int)` Returns a pseudorandomly chosen `int` value between zero (inclusive) and the specified bound (exclusive).
`Int`	`nextInt(origin: Int, bound: Int)` Returns a pseudorandomly chosen `int` value between the specified origin (inclusive) and the specified bound (exclusive).
`Long`	`nextLong()` Returns a pseudorandomly chosen `long` value.
`Long`	`nextLong(bound: Long)` Returns a pseudorandomly chosen `long` value between zero (inclusive) and the specified bound (exclusive).
`Long`	`nextLong(origin: Long, bound: Long)` Returns a pseudorandomly chosen `long` value between the specified origin (inclusive) and the specified bound (exclusive).

Public methods

of

Added in API level 35

open static fun of(name: String!): RandomGenerator.StreamableGenerator!

Returns an instance of StreamableGenerator that utilizes the name algorithm.

Parameters
`name`	String!: Name of random number generator algorithm

Return
`RandomGenerator.StreamableGenerator!`	An instance of `StreamableGenerator`

Exceptions
`java.lang.NullPointerException`	if name is null
`java.lang.IllegalArgumentException`	if the named algorithm is not found

rngs

Added in API level 35

abstract fun rngs(): Stream<RandomGenerator!>!

Returns an effectively unlimited stream of objects, each of which implements the RandomGenerator interface. Ideally the generators in the stream will appear to be statistically independent. The new generators are of the same algorithm as this generator.

Return
`Stream<RandomGenerator!>!`	a stream of objects that implement the `RandomGenerator` interface

rngs

Added in API level 35

open fun rngs(streamSize: Long): Stream<RandomGenerator!>!

Parameters
`streamSize`	Long: the number of generators to generate

Return
`Stream<RandomGenerator!>!`	a stream of objects that implement the `RandomGenerator` interface

Exceptions
`java.lang.IllegalArgumentException`	if `streamSize` is less than zero