Programming Scala第4章demo01 scala的類__scala

前段時間先看的《快學scala》，覺得寫的不是很好，於是就開始看這本《Programming scala》了，把書中的代碼都自己實現了一下，現在放在部落格中分享。

package base04/**  * Scala的類  * Created by dd on 2016/5/18 0018.  */object demo01 extends App{  class Car(val year:Int){    private var milesDriven:Int = 0    def miles() = milesDriven    def drive(distance:Int){      milesDriven += Math.abs(distance)    }  }  val car = new Car(2009)  println("car made in year : "+car.year)  println("Miles driven : "+car.miles)  car.drive(10)  println("Miles driven : "+car.miles)}