What is the purpose of final keyword and when to use it?
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Answer / Neetu Gangwar
"The 'final' keyword in Java has several uses: A variable declared as final can only be assigned once, a method cannot override a final method, and a class declared as final cannot be subclassed. It is used to ensure that a particular object or value remains constant throughout the program's execution. For example, final variables should be initialized at their declaration, and a final class signifies that it is immutable."
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