云星数据---Scala实战系列(精品版)】：Scala入门教程029-Scala实战源码-Scala 的特质 （接口）05

Scala 的特质 （接口）05

package scala_learn.demo06_trait

/**
* Created by liguohua on 2017/8/1.
*/

class Human{
println("construct Human!")
}
//trait可以继承自类，Java不可以
trait Student extends  Human{
println("construct Student!")
}
trait Teacher extends  Human{
println("construct Teacher!")
}
//构造顺序是从左至右，但不会重复构造Human
class Dugg extends  Human with  Student with Teacher{
println("construct Dugg!")
}
object O6_TraitDemo {
def main(args: Array[String]) {
val  d = new Dugg()
}
}