thing

data class Wrapper(val thing: String?)

SendChannel<T>

send

BooleanArray(64) { (long shr it) and 1 != 0 }

protected var counter: Int

Can not access 'counter': it is protected in ...

getCounter()

setCounter()

interface A; class AI: A; interface B (val a: A); class BI (override val a: AI): B

\"

"

"\\\"" to "\""

"""\"""" to """""""

Pair("""
    \"
    """.trimIndent(),
    """
    "
    """.trimIndent())

@ObsoleteCoroutinesApi

@ExperimentalCoroutinesApi

@Experimental
@UseExperimental(ObsoleteCoroutinesApi::class, ExperimentalCoroutinesApi::class)
annotation class MyExperimental

@UseExperimental(MyExperimental::class)

@UseExperimental(ObsoleteCoroutinesApi::class)

XY is marked unstable

fun main(args: Array<String>) {

    val subt1: SubServiceType.SUBT1 = SubServiceType.SUBT1(SUBT1Type.SUBT11)

    val gson = Gson()
    val str = gson.toJson(subt1, SubServiceType::class.java)

    val strJson = "{\"mainServiceType\":\"SUBT21\"}"

    val objSubt2Type = gson.fromJson(strJson, ??) //<- PROBLEM IS HERE
}

enum class MainServiceType(value: Int) {
    MAIN(1),
    MAIN1(2)
}

interface I1{
    val value:Int
}

enum class SUBT1Type(override val value: Int) : I1{
    SUBT11(2),
    SUBT12(3)
}

enum class SUBT2Type(override val value: Int) : I1 {
    SUBT21(2),
    SUBT22(3)
}

sealed class SubServiceType(val mainServiceType: I1) {
    data class SUBT1(val subServiceType: SUBT1Type) : SubServiceType(subServiceType)
    data class SUBT2(val subServiceType: SUBT2Type) : SubServiceType(subServiceType)
}