Question:
What is the use of the final keyword in Java?
What is the use of the final keyword in Java?
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final locks things. Which option describes something being locked, not allowed?
Updated On: Jul 2, 2026
- To indicate that a class can be inherited
- To define an abstract method
- To indicate that a variable can be modified
- To indicate that a method cannot be overridden
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The Correct Option is D
Solution and Explanation
Step 1: In Java, the final keyword restricts change. Its effect depends on where it is applied.
Step 2: A final variable cannot be reassigned once set. A final class cannot be extended. A final method cannot be overridden by a subclass.
Step 3: Check the options. A final class cannot be inherited, so (A) is wrong. final is not used to define abstract methods, so (B) is wrong. A final variable cannot be modified, so (C) is wrong.
Step 4: The correct valid use listed is (D), a final method cannot be overridden.
Step 2: A final variable cannot be reassigned once set. A final class cannot be extended. A final method cannot be overridden by a subclass.
Step 3: Check the options. A final class cannot be inherited, so (A) is wrong. final is not used to define abstract methods, so (B) is wrong. A final variable cannot be modified, so (C) is wrong.
Step 4: The correct valid use listed is (D), a final method cannot be overridden.
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