In kotlin enum default starting order is 0, how can i change it?

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Closed. This question needs details or clarity. It is not currently accepting answers. question from:https://stackoverflow.com/questions/65866561/in-kotlin-enum-default-starting-order-is-0-how-can-i-change-it

Answer 1

Kotlin enums have an ordinal property that starts at zero and cannot be modified. If you want some other numbering system, you can create a property for it like this:

enum class CoffeeStrength {
    LEVEL1, LEVEL2, LEVEL3, LEVEL4, LEVEL5;

    val level: Int
        get() = ordinal + 1
}

However, it is typically discouraged to base characteristics off ordinals, because it makes it impossible to insert values or deprecate values without changing the numbering. There are exceptions however. If you have an enum for GregorianMonth, you know the order and count will never change, so it might be fine to use an ordinal.