[scala基础]--拆分List操作

运行环境：Jdk1.7、scala-2.10.4

package study

/**
  * Document:本类作用---->拆分List
  * User: yangjf
  * Date: 2016/8/14  8:57
  */
object TestArrays {
  def main(args: Array[String]) {
    val lists=List(12,34,5,19,56,23,16)
    val end: (List[Int], List[Int]) =lists.partition(_>20)
   println("获得新元祖："+end)

    val maps=Map(1->"tom",2->"jim",3->"cassie",4->"hello",5->"worldss")
    val ends1: (Map[Int, String], Map[Int, String]) =maps.partition(_._2.length>3)
    println("获取新元祖:"+ends1)

    val sets=Set(23,12,45,21,56,62,55,23)
    val setends=sets.partition(_>40)
    println("获取新元祖:"+setends)
  }
}

结果：

获得新元祖：(List(34, 56, 23),List(12, 5, 19, 16))
获取新元祖:(Map(5 -> worldss, 3 -> cassie, 4 -> hello),Map(1 -> tom, 2 -> jim))
获取新元祖:(Set(56, 45, 55, 62),Set(21, 12, 23))