Discussion
What is the keyword final used for in Java ?
Answer: D
final is used for All of the above.
In Java, a final variable can be assigned only once, so it acts as a constant. A final method cannot be overridden by subclasses, which also makes it unmodifiable in them. (A final class cannot be extended.)
Since all three uses listed are correct, choosing any one alone is incomplete.
For example, final int MAX = 10; cannot be reassigned, and final class String cannot be subclassed.
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