In Java, it is valid to apply the "final" keyword at three levels: to a variable,...
In Java, it is valid to apply the "final" keyword at three levels: to a variable, to a method within a class and to a class itself. Describe the distinct effect of the final keyword at each of these levels: variable, method, class levels.
Homework Answers
We use the final keyword in the entity declaration. This entity can be a variable, method or class. It specifies that the value cant be modified in the future
The final keyword before variable:
Specifying the final keyword before a variable means that the value of the variable once initialized cant be modified in the future.
The final keyword before method:
Methods of the class having final keywords cannot be overridden or hidden by its subclasses.
Similarly,
the final keyword before class name specifies that the particular class cannot be subclassed.
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