practical_coroutines_21.kt

val eh = CoroutineExceptionHandler { _, throwable ->
    println("Oops error occured: ${throwable.localizedMessage}")
}

launch(eh) {
    async {
        delay(100)
        throw Exception("I failed)
    }
    
    withContext(Disptatchers.IO) {
        delay(100)
        throw Exception("I failed)
    }
    coroutineScope {
        delay(100)
        throw Exception("I failed)
    }
    println(callbackOp())
}

fun callbackOp() = suspendCancellableCoroutine<Int> {
  delay(50)
  throw Exception("I failed)  
}

Output:
(Output for individual run of async, withContext, coroutineScope or 
suspendCancellableCoroutine block mentioned above. Shown together for brevity)
Oops error occured: I failed