import scala.util.Random
/*
Generate random Powerball lottery numbers:
- 5 distinct numbers from 1–69
- 1 distinct Powerball number from 1–26
This program uses:
- scala.util.Random for RNG
- Set for uniqueness
- clean, idiomatic Scala functions
*/
/*
generateMainNumbers():
Generates 5 UNIQUE numbers in the range [1, 69].
Uses a Set to enforce uniqueness.
*/
def generateMainNumbers(rng: Random): Seq[Int] = {
var chosen: Set[Int] = Set.empty
// Keep adding until we have 5 distinct numbers
while (chosen.size < 5) {
val n: Int = rng.between(1, 70) // 1–69
chosen += n
}
chosen.toSeq.sorted
}
/*
generatePowerball():
Generates a single number in the range [1, 26].
*/
def generatePowerball(rng: Random): Int = {
rng.between(1, 27) // 1–26
}
@main def powerballGenerator(): Unit = {
val rng: Random = new Random()
val mainNumbers: Seq[Int] = generateMainNumbers(rng)
val powerball: Int = generatePowerball(rng)
println("Random Powerball numbers:")
println("Main numbers: " + mainNumbers.mkString(" "))
println("Powerball: " + powerball)
}
/*
run:
Random Powerball numbers:
Main numbers: 41 45 53 54 64
Powerball: 23
*/
