Why is a constant defined as a static final in Java?
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Java - Interview Questions and Answers

 Q1. Why is a constant defined as a static final in Java?Core Java
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Ans. Final makes sure that the value doesn't change after initialization and static makes sure that there is only one copy that can be shared across objects.

Making it non static will unnecessarily create a different copy per object wherein the same value will kept for all copies ( as its final and cannot be changed ).

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