Constants in Kotlin -- what's a recommended way to create them?

android kotlin constants

Jodimoro · May 18, 2017 · Viewed 112k times · Source

How is it recommended to create constants in Kotlin? And what's the naming convention? I've not found that in the documentation.

companion object {
    //1
    val MY_CONST = "something"

    //2
    const val MY_CONST = "something"

    //3
    val myConst = "something"
}

Or ...?

Answer

In Kotlin, if you want to create the local constants which are supposed to be used with in the class then you can create it like below

val MY_CONSTANT = "Constants"

And if you want to create a public constant in kotlin like public static final in java, you can create it as follow.

companion object{

     const val MY_CONSTANT = "Constants"

}