Well, there is Enum in which 3 variables are the Moderator Inkvizitor and God. How do I output their values to an array? And does enum any privileges, unlike class or shortcomings, because both have fields and you can write methods to them.
- 2Of course, the most important thing is that an enum object cannot be created using new. Therefore, they can always be compared through ==. Well, work as with any other object. - pavel
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1 answer
You can use the YourEnum.values() method to get an array of all possible enumeration options.
Enumeration is more convenient than a class when you are planning an unscalable number of object instances. For example, an enumeration storing the sex of a person Sex.Male and Sex.Female . Also enumerations can have methods, for example:
enum Sex { MALE, FEMALE; public String prefix() { return this == MALE ? "mr." : "mrs."; } } or
enum Sex { MALE { public String prefix() { return "mr."; } }, FEMALE { public String prefix() { return "mrs."; } }; public abstract String prefix(); } |