Can an enum be extended?

No, an enum cannot be extended in Java. Enums are final by design, which means they cannot inherit from another class. In Java, all enums implicitly extend the java.lang.Enum class, and since Java does not support multiple inheritance for classes, an enum cannot extend any other class[1][3][5][6].

Citations:
[1] https://www.java67.com/2013/07/15-java-enum-interview-questions-amswers-for-experienced-programmers.html?m=1
[2] https://www.mockquesti...