Can Kotlin data class have more than one constructor?

Question

I know that data class are like simple models in kotlin with getters and setter by default and are as simple this:

data class User(val name: String, val age:         


        

Answer 1

I wanted to have a class similar to below (with a constructor that parses an input)

data class Data(val a: String, val b: String) {
    constructor(spaceSeparated: String) { // error because we don't call this()
        val split = spaceSeparated.split(" ")
        this(split.first(), split.last()) // error again because it's not valid there
    }
}

The solution is to do this:

data class Data(val a: String, val b: String) {
    companion object {
        operator fun invoke(spaceSeparated: String): Data {
            val split = spaceSeparated.split(" ")
            return Data(split.first(), split.last())
        }
    }
}

And it can be called just as if it were a constructor