private[this] vs private

Question

In Scala I see such feature as object-private variable. From my not very rich Java background I learnt to close everything (make it private) and open (provide accessors) if

Answer 1

private var name is accessible from any method of the class Dummy (and its companion object Dummy).

private[this] var name is accessible from methods of this object only, not from other objects of class Dummy.