How are case classes special in Scala?

2018-06-26 00:47:53

This question already has an answer here:

What is the difference between Scala's case class and class? 13 answers

Case class is different from normal class in following ways-

1) You can create instance of case class without new keyword

2) You can do pattern matching with case class

3) The constructor parameters of case classes are treated as public values and can be accessed directly like -

abstract class Term

case class Var(name: String) extends Term

val x = Var("x") println(x.name)

Please refer http://docs.scala-lang.org/tutorials/tour/case-classes.html and http://www.scala-lang.org/old/node/258

For more details about case classes

链接地址: http://www.djcxy.com/p/72826.html