Pros and cons of package private classes in Java?

Question

I am learning Java recently, and I came across the notion of package-private classes, which is the default if we don\'t specify anything. But then I realized:

Answer 1

"Package Private" its used when you have several packages, and it means, other classes in the same package can access that class or class member as "public", classes in other packages cannot access, its like "private like them."