FizzBuzz.scala

FizzBuzz.scala

// パターン１
for(x <- 1 to 100) x match {
  case x if x % 3 == 0 && x % 5 == 0  => println("FizzBuzz")
  case x if x % 3 == 0 => println("Fizz")
  case x if x % 5 == 0 => println("Buzz")
  case _ => println(x)
}

// パターン２
for(x <- 1 to 100) (x % 3, x % 5) match {
  case (0,0) => println("FizzBuzz")
  case (0,_) => println("Fizz")
  case (_,0) => println("Buzz")
  case _ => println(x)
}

// パターン３
def fizzbuzz(x:Int )= {
  (x%3,x%5) match {
    case (0,0) => "FizzBuzz"
    case (0,_) => "Fizz"
    case (_,0) => "Buzz"
    case _ => x
  }
}
(1 to 100).map(fizzbuzz).foreach(println)