What is the relationship between method overriding and method access?

• A. The overriding method can increase the access level
• B. The overriding method must maintain the same access level
• C. The overriding method cannot have a private access modifier
• D. The overriding method must reduce the access level

Answer: (B)

The relationship between method overriding and method access is primarily governed by the rules of inheritance and accessibility in Java. When a subclass overrides a method from its superclass, it is essential that the overriding method maintains the same access level as the method it is overriding. This rule ensures that the subclass remains compatible with the interface and behavior expected by the superclass.

By maintaining the same access level, the subclass is not restricting access to the method further than allowed by the parent class. For example, if a method in the superclass is declared as public, the overriding method in the subclass must also be public. If it were to be made protected or private, this would violate the Liskov Substitution Principle, which states that objects of a superclass should be replaceable with objects of a subclass without affecting the correctness of the program.

While there are scenarios in Java where certain access levels can be changed when overriding (such as changing a method from protected to public), one cannot reduce the level of access below that defined in the superclass. Therefore, the requirement for the overriding method to maintain the same access level serves to ensure logical consistency and proper encapsulation in object-oriented programming.