Which method cannot be overridden?
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Answer: B. final
Explanation
Declaring a method with the final keyword instructs the Java compiler to prevent method overriding. Subclasses cannot provide alternative implementations for methods locked with this modifier constraint. This restriction ensures that core behavioral logic remains unchanged throughout inheritance hierarchies. Object-oriented programming allows subclasses to override inherited methods to customize behavior. Security-sensitive or performance-critical methods are often marked final to prevent unintended modifications. The compiler enforces this rule at build time, rejecting subclasses that attempt to override final methods.
Framework architects use final methods to protect internal algorithms from being broken by custom subclasses. Design patterns sometimes rely on final template methods to enforce fixed execution workflows. Understanding modifier constraints helps developers design robust and secure object-oriented class hierarchies. Println is an output method used for printing text to the console rather than a restriction modifier. Super is a reference keyword used to access parent class members from within child classes. Static methods belong to the class rather than instances, meaning they are hidden rather than overridden.
- Subject
- Computer Science
- Category
- Software Engineering
- Topic
- —
- Difficulty
- medium
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