scala基础题--面向对象2

练习2：根据下图实现类。在TestCylinder类中创建Cylinder类的对象，设置圆柱的底面半径和高，并输出圆柱的体积

import scala.beans.BeanProperty
 
object work04 {
  def main(args: Array[String]): Unit = {
    val area1=new TestCylinder
    var area2=new area1.Cylinder
 
     var areanum:Double=area2.findArea(5.0)
    println(areanum)
    var volumenum:Double=area2.findVolume(2)
    println(volumenum)
  }
}
class TestCylinder{
 
  class Cylinder{
    @BeanProperty var radius:Double=1
    def findArea(radius:Double):Double={
 
      var area:Double=0
      area=radius*radius*3.14
      area
 
    }
    @BeanProperty var length:Double=1
    def findVolume(length:Double):Double={
      var volume:Double=0
      volume=findArea(radius)*length
      volume
    }
 
  }
}