Scala:类的属性、对象私有属性

类的基本操作

（1）

package kmust.hjr.learningScala07

/** * Created by Administrator on 2015/7/14. */
class Person {
  private var age=0
  /* *['inkrim(e)nt] increase/growth/rise */
  def increment(): Unit ={
    age+=1
  }
  def current=age
}

package kmust.hjr.learningScala07

/** * Created by Administrator on 2015/7/14. */
object helloOOP {
  def main(args:Array[String])={
    val person=new Person()
    person.increment()
    println(person.current)
  }
}

（2）

package kmust.hjr.learningScala07

/** * Created by Administrator on 2015/7/14. */
class Student {
  var age=1
}

package kmust.hjr.learningScala07

/** * Created by Administrator on 2015/7/14. */
object helloOOP {
  def main(args:Array[String])={

  /* val person=new Person() person.increment() println(person.current)*/

    val student=new Student
    println(student.age)
  }
}

类的私有属性

package kmust.hjr.learningScala07

/** * Created by Administrator on 2015/7/14. */
class Student {

  private var privateAge=25
  val name="Spark with Scala "
  def age=privateAge

  def isYounger(other:Student)=privateAge<other.privateAge
}

package kmust.hjr.learningScala07

/** * Created by Administrator on 2015/7/14. */
object helloOOP {
  def main(args:Array[String])={

    /*val person=new Person() person.increment() println(person.current)*/

    val student=new Student
    println(student.age)
    println(student.name)
  }
}

附件 ：