Which modifier can be applied to class methods but not to classes themselves?

• A. Private
• B. Protected
• C. Final
• D. Static

Answer: (C)

The modifier that can be applied to class methods but not to classes themselves is the final modifier. When used with methods, the final keyword indicates that the method cannot be overridden by subclasses. This can be useful for ensuring that the original implementation of a method remains unchanged, providing a stable and predictable behavior for the method across inherited classes.

In contrast, the final modifier applied to a class indicates that the class cannot be subclassed. Therefore, while final can restrict method overriding at the instance level, it serves a different purpose when dealing with classes. It is important to note that the other modifiers — private, protected, and static — can apply in different contexts. For example, private and protected control access levels, and static indicates that a method belongs to the class rather than instances of the class, but none of them serve the unique purpose of preventing method overriding.

This understanding underscores the significance of using final thoughtfully in method declarations to maintain the intended functionality without allowing further modification in subclasses.