I am a newbie and reading the book <pro spring>
You get following code in this book:
Listing 4-3 on page 51
Code:
private Dependency dep;
Listing 4-7 on page 54
Code:
private Encyclopedia enc;
My question is,
where can I find class Dependency,Encyclopedia?
or they are not real class?
Can someone help me?

Thank you in advance.