In the K&B 1.5 book, on page 68 (2 min drill), they wrote:
There are three access modifiers: public, protected, and private.
There are four access levels: public, protected, default, and private.
I'm a bit confused, Initially, I taught that both (modifier and level) were the same thing. But it doesn't looks like it.
What is the difference between an access modifier and access level?