Can Enum extend a class in Java?
Knowing the constraints and capabilities of any technology is key to being successful as a Java programmer. Interviewers will ask a lot of questions about the capabilities of a technology to determine if you understand these. Programmers who don't understand the capabilities and constraints of the technology waste a great deal of time experimenting with these. This costs the organization both time and money. Therefore, interviewers will ask questions like this to confirm that you understand these limitations.
Assuming that you have experience using Enum in your Java programming, questions like this should be easy for you to answer. However, it is still recommended that you review Enum before attending an interview for a Java programmer's job so that the concepts are fresh in your mind. Practicing questions like this will also help you prepare for the interview and ensure that you perform to your absolute best.
"Enum cannot extend the class in Java, even though it is a type as a class or interface in Java. Since Enum extends abstract base class java.lang by default, it cannot extend another class. This is because Java doesn't support multiple inheritances for classes."
