https://docs.oracle.com/javase/jp/15/docs/api/java.base/java/util/SplittableRandom.html
SplittableRandom (Java SE 15 & JDK 15)
declaration: module: java.base, package: java.util, class: SplittableRandom
java sejdk
https://developer.android.com/reference/kotlin/java/util/SplittableRandom
SplittableRandom | API reference | Android Developers
api referenceandroiddevelopers