package com.aura.scala.day01 object sealedClassed { def findPlaceToSit(piece: Furniture) = piece match { case a: Couch => "Lie on the couch" case b: Chair => "Sit on the chair" } } //sealed定义密封类 sealed abstract class Furniture case class Couch() extends Furniture case class Chair() extends Furniture
learning scala sealed class
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