import java.util.UUID
// A GUID (Globally Unique Identifier) and a UUID (Universally Unique Identifier)
// are essentially the same, both being 128-bit values used to uniquely identify
// information in computer systems.
object HashGuidsExample {
def main(args: Array[String]): Unit = {
// Create a Set containing three randomly generated UUIDs.
// UUID.randomUUID() produces a type‑4 GUID.
val guids: Set[UUID] = Set(
UUID.randomUUID(),
UUID.randomUUID(),
UUID.randomUUID()
)
// Compute a hash value for the entire set.
// In Scala, hashCode is idiomatic for combining values into a single hash.
val hash: Int = guids.hashCode()
// Print the GUIDs so we can see what was hashed.
println("GUIDs in the set:")
guids.foreach(println)
// Print the resulting hash value.
println(s"\nHash of the GUID set: $hash")
}
}
/*
run:
GUIDs in the set:
04b83e9c-a08e-44e9-81e4-cc3753799a6e
e08597be-b786-45c9-a530-8fd2dd842930
769d5a34-4534-4bda-b7bd-06b4c5804568
Hash of the GUID set: -159098394
*/
