In This Chapter
Declaring members protected
Accessing protected members from within the class
Accessing protected members from outside the class
Chapter 12 introduces the concept of the class. That chapter describes the public keyword as though it were part of the class declaration — just something you do. In this chapter, you find out about an alternative to public.
The members of a class can be marked protected, which makes them inaccessible outside the class. The alternative is to make the members public. Public members are accessible to all.
To understand the role of protected, think about the goals of object-oriented programming: