scala.util

Random

class Random extends AnyRef

known subclasses: Random

Inherits

  1. AnyRef
  2. Any

Value Members

  1. def equals(arg0: Any): Boolean

    This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence

    This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence.

    The default implementations of this method is an equivalence relation:

    • It is reflexive: for any instance x of type Any, x.equals(x) should return true.
    • It is symmetric: for any instances x and y of type Any, x.equals(y) should return true if and only if y.equals(x) returns true.
    • It is transitive: for any instances x, y, and z of type AnyRef if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.

    If you override this method, you should verify that your implementation remains an equivalence relation. Additionally, when overriding this method it is often necessary to override hashCode to ensure that objects that are "equal" (o1.equals(o2) returns true) hash to the same Int (o1.hashCode.equals(o2.hashCode)).

    arg0

    the object to compare against this object for equality.

    returns

    true if the receiver object is equivalent to the argument; false otherwise.

    definition classes: AnyRef ⇐ Any

  2. def hashCode(): Int

    Returns a hash code value for the object

    Returns a hash code value for the object.

    The default hashing algorithm is platform dependent.

    Note that it is allowed for two objects to have identical hash codes (o1.hashCode.equals(o2.hashCode)) yet not be equal (o1.equals(o2) returns false). A degenerate implementation could always return 0. However, it is required that if two objects are equal (o1.equals(o2) returns true) that they have identical hash codes (o1.hashCode.equals(o2.hashCode)). Therefore, when overriding this method, be sure to verify that the behavior is consistent with the equals method.

    definition classes: AnyRef ⇐ Any

  3. def nextASCIIString(length: Int): String

    Returns a pseudorandomly generated String drawing upon only ASCII characters between 33 and 126

    Returns a pseudorandomly generated String drawing upon only ASCII characters between 33 and 126.

  4. def nextBoolean(): Boolean

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

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

  5. def nextBytes(bytes: Array[Byte]): Unit

    Generates random bytes and places them into a user-supplied byte array

    Generates random bytes and places them into a user-supplied byte array.

  6. def nextDouble(): Double

    Returns the next pseudorandom, uniformly distributed double value between 0

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

  7. def nextFloat(): Float

    Returns the next pseudorandom, uniformly distributed float value between 0

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

  8. def nextGaussian(): Double

    Returns the next pseudorandom, Gaussian ("normally") distributed double value with mean 0

    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.

  9. def nextInt(n: Int): Int

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

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

  10. def nextInt(): Int

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

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

  11. def nextLong(): Long

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

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

  12. def nextString(length: Int): String

    Returns a pseudorandomly generated String

    Returns a pseudorandomly generated String. This routine does not take any measures to preserve the randomness of the distribution in the face of factors like unicode's variable-length encoding, so please don't use this for anything important. It's primarily intended for generating test data.

    length

    the desired length of the String

    returns

    the String

  13. val self: Random

  14. def setSeed(seed: Long): Unit

  15. def toString(): String

    Returns a string representation of the object

    Returns a string representation of the object.

    The default representation is platform dependent.

    definition classes: AnyRef ⇐ Any

Instance constructors

  1. new Random()

    Creates a new random number generator

    Creates a new random number generator.

  2. new Random(seed: Int)

    Creates a new random number generator using a single integer seed

    Creates a new random number generator using a single integer seed.

  3. new Random(seed: Long)

    Creates a new random number generator using a single long seed

    Creates a new random number generator using a single long seed.

  4. new Random(self: Random)