Introduction to OOP Chapter 23: Object Interconnections : next previous audio real text

Class-Level versus Object-Level Visibility

Here is another interesting way that object-oriented languages have chosen to differ from each other.

Question: Are sisters and brothers allowed to look at each others private data fields?

An answer of YES is class-level visibility (C++ and Java) and answer of NO is object-level visibiity.

Intro OOP, Chapter 23, Slide 17