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I have this Kotlin class:

class Storage {
    companion object {
        val COL_ID = "id"
    }
}

and I want to use the COL_ID in my Java code:

doSomething(Storage.COL_ID);

but, the compiler tells me that COL_ID is private. I have tried to add public to all the elements (class, object and val), but it has no effect.

How can I access these companion object constants?

Update I think my question is different from the given duplicate, because I want to create constants, instead of a static method.

over 4 years ago · Santiago Trujillo

Answer question

Accepted Answer · 2022-05-24T16:18:00.847Z

I added const, and everything was fine:

class Storage {
    companion object {
        const val COL_ID = "id"
    }
}