concurrency - Scala - futures does not run -


i trying run following future basic code

 future { println("ssss")} onsuccess{ case _ => println("succ")}

however, when run main method, nothing console printed , system exits instantly. using implicit executioncontext. hints?

this code:

  val f = future(await.ready(promise().future, d.timeleft))     f.onsuccess {      case _ => println("hee")    }

also exits immediately....

futures executed on dedicated thread pool. if main program not wait future, exit , future won't have chance execute. can here use await in main program block main thread until future executes:

def main( args: array[string] ) {   val fut = future { println("ssss")}   fut onsuccess{ case _ => println("succ")}   await.result( fut ) }

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