Can a class declared as private be accessed outside its package?

• A. Yes, if the access modifier is changed.
• B. No, it cannot be accessed.
• C. Yes, if it's a subclass.
• D. Only through a public method.

Answer: (B)

In Java, a class that is declared as private is only accessible within the context of the class or the module where it is defined. The concept of accessibility for classes is tightly governed by their access modifiers, and the private modifier restricts access strictly to the defining class.

Being private means that the class cannot be accessed or instantiated outside the package it resides in, which includes any other classes, even subclasses. This ensures encapsulation, a core principle of object-oriented programming, by restricting external access to certain classes, thereby protecting the integrity of the data and behavior encapsulated within them.

This tight restriction through the private modifier means that no other classes can reference this private class directly, irrespective of whether they belong to the same package or are subclassed. Therefore, it is not possible for the class to be accessed from any other package or from outside its immediate context.