for in scala code example

Example 1: how loop in scala

for ((name, count) <- names.zipWithIndex) {
    println(s"$count is $name")
}

Example 2: how loop in scala

ratings.foreach {
    case(movie, rating) => println(s"key: $movie, value: $rating")
}

ratings.foreach(x => println(s"key: ${x._1}, value: ${x._2}"))
ratings.keys.foreach((movie) => println(movie))
ratings.keys.foreach(println)
ratings.values.foreach((rating) => println(rating))