import java.util.UUID
/*
Generate a UUID v4 (random-based) in idiomatic Scala.
Scala does not have its own UUID generator, but it uses Java's
built-in java.util.UUID class, which provides:
- UUID.randomUUID() → RFC 4122 version 4 UUID
- Fast, reliable, and standard across JVM languages
*/
object UUIDv4Generator {
/// Generate a UUID v4 and return it as a lowercase string.
def generateUUIDv4(): String = {
val uuid = UUID.randomUUID() // built-in v4 generator
uuid.toString.toLowerCase // ensure lowercase output
}
def main(args: Array[String]): Unit = {
val uuid = generateUUIDv4()
println(s"Generated UUID v4: $uuid")
}
}
/*
run:
Generated UUID v4: a135ee3a-70e4-4535-afc0-cbe6c3e31ef6
*/
