DT大数据 scala 单例 伴生对象
SCALA 单例对象 伴生对象 DT大数据梦工厂scala的所有视频、PPT和代码在百度云盘的链接:http://pan.baidu.com/share/home?uk=4013289088#category/type=0&qq-pf-to=pcqq.group
《Scala深入浅出实战初级入门经典视频课程》http://edu.51cto.com/lesson/id-66538.html
《Scala深入浅出实战中级进阶经典视频课程》http://edu.51cto.com/lesson/id-67139.html class University{ val id = University.newStudenNo private var number =0 def aClass(number:Int){this.number += number} }
object University{ private var studentNo = 0 def newStudenNo = { studentNo += 1 studentNo } }
object ObjecOps {
def main(args: Array[String]): Unit = { println(University.newStudenNo) println(University.newStudenNo) }
}