Good morning from japan. So now i am stucking in companion object.

class Myclass(val name: String, val age: Int) {
    private someProperty = .....
    private someProperty = .....
    companion object {
        @JvmStatic
        val instance = Myclass(name = ??  , age = ??)
    }
}

how to set name and age value inside the companion object?

Your code seems to be valid. What is troubling you?

Thanks.. my problem is here

val instance = MyClass(name = "name", age = 42)

i don’t want to put name value and age value directly. Because i have to call this class from Java.

so do you want to use the

MyClass

as a singleton with initializing like this snippet? (below code is invalid)

@atsushi-koshikizawa yes definitely, i just thought, i can use the property value of name and age inside companion object and it’s totally wrong.

yes, properties in constructor are dynamic values, not static. so they cannot be referred in companion object.