abstract virtual class util::Random

sys::Obj
  util::Random

Random provides different implementation of random number generators with more flexibility than the methods available in sys. Also see Int.random, Float.random, Range.random, and List.random.

makeSecure

static Random makeSecure()

Construct a cryptographically strong random number generator.

makeSeeded

static Random makeSeeded(Int seed := TimePoint.nowMillis())

Construct a repeatable, seeded random number generator.

next

abstract Int next(Range? r := null)

Generate 64-bit integer within the given range. If range is null, assume full range of 64-bit integers

nextBool

abstract Bool nextBool()

Generate random boolean.

nextBuf

abstract Buf nextBuf(Int size)

Generate a randomized number of bytes.

nextFloat

abstract Float nextFloat()

Generate 64-bit floating point number between 0.0f and 1.0f.