Can enums have different types?
Normally, if you need enumerations of different types then just implement different enum types. The unsafe pattern with class with int-constants is not considered as good style (due to inherent unsafety). Another alternative might be the so-called type-safe enum pattern published by Joshua Bloch.
Can you have two enums with the same value?
Two enum names can have same value. For example, in the following C program both ‘Failed’ and ‘Freezed’ have same value 0. 2. If we do not explicitly assign values to enum names, the compiler by default assigns values starting from 0.
Can you define multiple enums inside same class?
java file may have only one public class. You can therefore declare only one public enum in a . java file. You may declare any number of package-private enums.
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.
Do enums have to be unique?
Enum names are in global scope, they need to be unique. The program above compiled successfully. Is this a known MonoDevelop behavior or why it was compiled without errors?
Can enums have user defined methods?
Below code uses enums with defined methods: We should define methods as abstract methods and then we have to implement defferent flavours/logic based on each enum members. Because of declaring abstract method at the enum level; all of the enum members require to implement the method.
Which modifiers are allowed in enum?
So the access modifiers rules for enums are the same as those used for a standard classes. For the exam, keep in mind that you CAN define a enum as protected, private or even static only if such enum is a member of another class, otherwise, the only modifiers allowed are public or none (which behaves as default).
Can we create an instance of enum outside of enum itself?
No, you can not create enum instances outside of the Enum boundary, because Enum doesn’t have any public constructor, and the compiler doesn’t allow you to provide any public constructor in Enum.
How many enum members can have the same name?
The body of an enum type declaration defines zero or more enum members, which are the named constants of the enum type. No two enum members can have the same name.
How to declare multiple fields with the same value in Enum?
As in C#, you can declare multiple fields with the same value. But you must explicitly enable this option by using the allow_alias option in the enum: You can declare enumerations at the top level in a .proto file, or nested within a message definition.
What is the value of enum at run time?
At run-time, a value of type System.Enum can be null or a reference to a boxed value of any enum type. Each enum type defines a distinct type; an explicit enumeration conversion ( Explicit enumeration conversions) is required to convert between an enum type and an integral type, or between two enum types.
Should enum methods be in all caps?
First, the enum methods shouldn’t be in all caps. They are methods just like other methods, with the same naming convention. Second, what you are doing is not the best possible way to set up your enum. Instead of using an array of values for the values, you should use separate variables for each value.