What are marker interfaces in Java?

Kapil S.

Associate Consultant aspiring to be a Software Developer | Java | SpringBoot | MySQL | HTML5 | CSS | Javascript

Published Feb 28, 2025

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What are marker interfaces in Java?

A marker interface is empty. It does not have any functions or variables in it. A marker interface provides information about the object during runtime. It is also called a tagging interface. These days annotations are preferred over marker interfaces.

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