scalaでsortの練習

gistfile1.scala

case class Hoge(index:Int ,name:String)

object main {
  def main(args: Array[String]) {
    val hogeList = List(Hoge(0, "hoge1"), Hoge(2, "hoge2"), Hoge(0, "hoge3"), Hoge(0, "hoge6"), Hoge(1, "hoge9"))
    println(hogeList)


    val hogeListSorted1 = hogeList.sortWith{ (o1,o2)=>
      //println(o1,o2)
      if (o1.index==o2.index) o1.name > o2.name
      else o1.index < o2.index
      //o1.index > o2.index
    }

    val hogeListSorted2 = hogeList.sortBy{
      f=>
        //println (1.0/f.name(4).toString.toDouble)
        f.index + (1.0/f.name(4).toString.toDouble)
    }

    val hogeListSorted3 = hogeList.sortBy{
      _.name
    }.reverse
      .sortBy{
      _.index
    }
    println(hogeListSorted3)

  }
}