import kotlinx.coroutines.experimental.async
import kotlinx.coroutines.experimental.awaitAll
import kotlinx.coroutines.experimental.delay
import kotlinx.coroutines.experimental.launch
import kotlinx.coroutines.experimental.runBlocking

fun main(args: Array<String>) {
    runBlocking {
        (20..30).forEach {
            launch{
                println("main before" + it)
                val outer = it
                delay(1000L)
                val lists = (1..10)
                        .map { async{anotherMethod(outer, it)}}
                println("main after------------------Awaiting" + it)
                lists.awaitAll()
                println("Done awaiting -main after-----------------" + it)

            }


        }

        println("Hello,") // main thread continues here immediately
    }
}

suspend fun anotherMethod (outer: Int,index: Int){
    println("inner-b4----" + outer + "--" + index)
    delay(3000L)
    println("inner-After----" + outer + "--" + index)
}

fun main(args: Array<String>) {
    runBlocking {
        (20..30).forEach {
            async{
                println("main before" + it)
                val outer = it
                delay(1000L)
                val lists = (1..10)
                        .map { async{anotherMethod(outer, it)}}
                println("main after------------------Awaiting" + it)
                lists.awaitAll()
                println("Done awaiting -main after-----------------" + it)

            }


        }

        println("Hello,") // main thread continues here immediately
    }
}

suspend fun anotherMethod (outer: Int,index: Int){
    println("inner-b4----" + outer + "--" + index)
    delay(3000L)
    println("inner-After----" + outer + "--" + index)
}