Jothi Jothi - 19 days ago 7
Java Question

Why are interface variables static and final by default?

Why are interface variables static and final by default in Java?

Answer

From the Java interface design FAQ by Philip Shaw:

Interface variables are static because Java interfaces cannot be instantiated in their own right; the value of the variable must be assigned in a static context in which no instance exists. The final modifier ensures the value assigned to the interface variable is a true constant that cannot be re-assigned by program code.

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