object count {
val stringList = List("Hello Scala Hbase kafka", "Hello Scala Hbase", "Hello Scala", "Hello")
val wordList: List[String] = stringList.flatMap(str => str.split(" "))
val wordToWordsMap: Map[String, List[String]] = wordList.groupBy(word => word)
val wordToCountMap: Map[String, Int] = wordToWordsMap.map(tuple => (tuple._1, tuple._2.size))
val sortList: List[(String, Int)] = wordToCountMap.toList.sortWith {
(left, right) => {
left._2 > right._2
}
}
def main(args: Array[String]): Unit = {
val resultList: List[(String, Int)] = sortList.take(3)
println(resultList)
}
}
