``` class Human(val name: String, age: Int) { ...

# announcements

[LastExceed]

class Human(val name: String, age: Int) {
    var age = age
        private set
    
    fun birthday() {
        //party hard
        age++
    }
}

can this be simplified somehow or is it good as is?

[Pavlo Liapota]

If immutable class will work in your case, then you can write:

data class Human(
    val name: String,
    val age: Int
)

fun Human.birthday() = copy(age = age + 1)

[Pavlo Liapota]

In this case birthday returns new instance instead of modifying existing one.

[LastExceed]

nah it needs to be mutable, i was wondering if its possible to set getters and setters for variables declared in the primary constructor (like name in my example)

[dawidhyzy]

data class Human(
    val name: String,
    private var age: Int
) {
    fun birthday() {
        //party hard
        age++
    }
}

[LastExceed]

@dawidhyzy in your example the setter of age isn't private, is it?

[dawidhyzy]

next time post this type of question in #C0B8MA7FA

[dawidhyzy]

now it is

[LastExceed]

but now the getter is private too

[dawidhyzy]

then I think this is the best you can get:

class Human(val name: String, age: Int) {
    var age = age
        private set
    
    fun birthday() {
        //party hard
        age++
    }
}