Modifier and Type
Method and Description
static boolean
bernoulli
Returns a random boolean from a Bernoulli distribution with success
probability 1/2.
static boolean
bernoulli
Returns a random boolean from a Bernoulli distribution with success
probability p.
static double
cauchy
Returns a random real number from the Cauchy distribution.
static int
discrete
Returns a random integer from the specified discrete distribution.
static int
discrete
Returns a random integer from the specified discrete distribution.
static double
exp
Returns a random real number from an exponential distribution
with rate λ.
static double
gaussian
Returns a random real number from a standard Gaussian distribution.
static double
gaussian
Returns a random real number from a Gaussian distribution with mean μ
and standard deviation σ.
static int
geometric
Returns a random integer from a geometric distribution with success
probability p.
static long
getSeed
Returns the seed of the pseudo-random number generator.
static void
mainString[] args)
Unit tests the methods in this class.
static double
pareto
Returns a random real number from the standard Pareto distribution.
static double
pareto
Returns a random real number from a Pareto distribution with
shape parameter α.
static int[]
permutation
Returns a uniformly random permutation of n elements.
static int[]
permutation
Returns a uniformly random permutation of k of n elements.
static int
poisson
Returns a random integer from a Poisson distribution with mean λ.
static double
random
Deprecated.
static void
setSeed
Sets the seed of the pseudo-random number generator.
static void
shuffle
Rearranges the elements of the specified array in uniformly random order.
static void
shuffle
Rearranges the elements of the specified array in uniformly random order.
static void
shuffle
Rearranges the elements of the specified subarray in uniformly random order.
static void
shuffle
Rearranges the elements of the specified array in uniformly random order.
static void
shuffle
Rearranges the elements of the specified subarray in uniformly random order.
static void
shuffleObject[] a)
Rearranges the elements of the specified array in uniformly random order.
static void
shuffleObject[] a,
int lo,
int hi)
Rearranges the elements of the specified subarray in uniformly random order.
static double
uniform
Deprecated.
static double
uniform
Deprecated.
static int
uniform
Deprecated.
static int
uniform
Deprecated.
static long
uniform
Deprecated.
static double
uniformDouble
Returns a random real number uniformly in [0, 1).
static double
uniformDouble
Returns a random real number uniformly in [a, b).
static int
uniformInt
Returns a random integer uniformly in [0, n).
static int
uniformInt
Returns a random integer uniformly in [a, b).
static long
uniformLong
Returns a random long integer uniformly in [0, n).
