Scala advanced_ Member access modifier

Access modifier

and Java equally ,scala You can also access the modifier , To control whether member variables and member methods can be accessed .

Definition

Java Access control in , The same applies scala, You can add... Before a member private/protected Keyword to control the visibility of members . But in scala in ,​​ No, public keyword ​​, Anything not marked as private or protected All members are public

Case study

• • 
    
• Define a Person class
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• stay main Method , Test for access to private members
  

Reference code

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        object _02AccessDemo {
        

        
  class Person {
        
    //  Define private member variables 
        
    private var name:String = _
        
    private var age:Int = _
        

        
    def getName() = name
        
    def setName(name:String) = this.name = name
        
    def getAge() = age
        
    def setAge(age:Int) = this.age = age
        

        
    //  Private member definition method 
        
    private def getNameAndAge = {
        
      name -> age
        
    }
        
  }
        

        
  def main(args: Array[String]): Unit = {
        
    val person = new Person
        
    person.setName(" Zhang San ")
        
    person.setAge(10)
        

        
    println(person.getName())
        
    println(person.getAge())
        
  }
        
}
       
       

        
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