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wookietreiber/rng-get-seed.scala

Last active September 29, 2017 11:07
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java.util.Random get seed
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rng-get-seed.scala
import java.util.{ Random => JRandom }
import java.util.concurrent.atomic.AtomicLong
import scala.util.Random
val rng = new Random
val seedField = classOf[JRandom].getDeclaredField("seed")
seedField.setAccessible(true)
val seed = seedField.get(rng.self).asInstanceOf[AtomicLong].get
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wookietreiber commented Sep 29, 2017 •
edited
Loading 

scala> :load rng-get-seed.scala
Loading rng-get-seed.scala...
import java.util.{Random=>JRandom}
import java.util.concurrent.atomic.AtomicLong
import scala.util.Random
rng: scala.util.Random = scala.util.Random@1d5fc340
seedField: java.lang.reflect.Field = private final java.util.concurrent.atomic.AtomicLong java.util.Random.seed
seed: Long = 121641685474786

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