Hi. I am unable to see the print output for corout...

# getting-started

[thhh]

Hi. I am unable to see the print output for coroutines in IntelliJ Idea. For other normal kotlin code, it works fine.

I have added question for details here: https://stackoverflow.com/questions/66730626/different-outputs-when-using-kotlin-playground-by-google-android-vs-intellij-w

I am trying to run the code:

import kotlinx.coroutines.*


fun main() {
    repeat(3) {
        GlobalScope.launch {
            println("Hi from ${Thread.currentThread()}")
        }
    }
}

on IntelliJ idea 2020.3.2:

The output is this:

6:14:05 PM: Executing task 'Coroutines_multipleKt.main()'...

> Task :wrapper

BUILD SUCCESSFUL in 184ms
1 actionable task: 1 executed
> Task :compileKotlin
> Task :compileJava NO-SOURCE
> Task :processResources NO-SOURCE
> Task :classes UP-TO-DATE
> Task :Coroutines_multipleKt.main()

BUILD SUCCESSFUL in 712ms
2 actionable tasks: 2 executed
6:14:06 PM: Task execution finished 'Coroutines_multipleKt.main()'.

But on Kotlin Playground I get the output that is expected:

Hi from Thread[DefaultDispatcher-worker-1 @coroutine#1,5,main] Hi from Thread[DefaultDispatcher-worker-1 @coroutine#2,5,main] Hi from Thread[DefaultDispatcher-worker-1 @coroutine#3,5,main]

What am I doing wrong?
Why doesn't IntelliJ produce the output as desired?

I have added an image:

https://i.imgur.com/N9WjEZz.png▾

where IntelliJ shows output, but as you can see its not producing output. Generally the blue highlighted area is where the println output would be

I have added an GIF, please check:

https://i.imgur.com/1unP2hY.gif▾

It shows how one code works and one does not.
Please guide where its going wrong

[thhh]

Looks like locally you need to use Thread.sleep for it to work

fun main() {
    repeat(3) {
        GlobalScope.launch {
            println("Hi from ${Thread.currentThread()}")
        }
    }
    Thread.sleep(2000L)
}