Access modifiers
Access modifiers can be augmented with qualifiers. A modifier of the form private[X] or protected[X] means that access is private or protected "up to" X, where X designates some enclosing package, class or singleton object.
package quizful {
package prof {
class Executive {
private[prof] var details = null
private[quizful] var friends = null
private[this] var secrets = null
def help(another : Executive) {
println(another.details)
println(another.secrets) //ERROR
}
}
}
}
Note the following points:
- Variable details will be accessible to any class within the enclosing package prof.
- Variable friends will be accessible to any class within the enclosing package quizful.
- Variable secrets will be accessible only on the implicit object within instance methods (this).
Ввійдіть щоб вподобати
Ввійдіть щоб прокоментувати