scala中case用法

class之前添加case可以自动生成equal、hashcode、toString、copy方法 和他的半生对象,并且为半生对象生成apply、unapply方法。 

import scala.language.postfixOps
case class ForFun(name:String)
object fun2{
  def main(args: Array[String]): Unit = {
    val forfun = ForFun.apply("Jack")
    println(forfun.name)
    val forFun2 = new ForFun("Nacy")
    println(forFun2.name+":"+forFun2.hashCode()+":"+forFun2.toString)
    println(forfun equals forFun2)
  }
}
结果如下:
Jack
Nacy:-1811736370:ForFun(Nacy)
false

原文链接:https://blog.csdn.net/sinat_35045195/article/details/78851476

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转载自www.cnblogs.com/123456www/p/12300669.html