What are the advantages of Java enums?

The advantages of Java enumeration are as follows:

1. Enum types are type-safe, as the compiler will verify the validity of enum instances at compile time, preventing potential errors.
2. High readability: Enumerating constants is meaningful and can intuitively express a certain state or option, thereby increasing the readability of the code.
3. Easily expandable: Enumerated types can be easily expanded by adding new constants without the need to modify existing code.
4. Each enum constant is a unique instance object, ensuring the uniqueness of instances and enabling the comparison of object references to determine if two enum constants are equal.
5. Enumerate: Enumerated types can be iterated through, making it convenient to handle the enumeration of constants.
6. Attributes and methods can be added: Enumerated types can have their own attributes and methods, allowing for custom behaviors to be added to each enumeration constant.
7. Enumerated types can implement one or more interfaces, giving them the characteristics and behaviors of interfaces.