Can enum class have methods?
The enum class body can include methods and other fields. The compiler automatically adds some special methods when it creates an enum. For example, they have a static values method that returns an array containing all of the values of the enum in the order they are declared.
What does the predefined enum method values () return?
All enumerations automatically contain two predefined methods: values( ) and valueOf( ). The values( ) method returns an array that contains a list of the enumeration constants. The valueOf( ) method returns the enumeration constant whose value corresponds to the string passed in str. 2.44.
How can we send enum value in JSON?
All you have to do is create a static method annotated with @JsonCreator in your enum. This should accept a parameter (the enum value) and return the corresponding enum. This method overrides the default mapping of Enum name to a json attribute .
What is enumeration explain values () and valueOf () methods?
Values() and valuesOf() methods The values() method returns an array that contains a list of the enumeration constants and the valueOf() method returns the enumeration constant whose values corresponds to the string passed in str.
What is the default value of enum in Java?
The default for one who holds a reference to an enum without setting a value would be null (either automatically in case of a class field, or set by the user explicitly).
Do enums have to be capitalized?
Enums are a type and the enum name should start with a capital. Enum members are constants and their text should be all-uppercase.
Can an enum class have methods C++?
No, it cannot.
Is enum valueOf case sensitive?
Enum class. valueOf method of enum accepts exactly the same String which is used to declare Enum constant to return that Enum constant. valueOf method is case-sensitive and invalid String will result in IllegalArgumentException.
Does enum valueOf throw exception?
The default exception thrown by the valueOf() implementation in Enum is sufficient: it gives the invalid type i.e. input as part of the exception’s message.