cancel_coroutine.kt

fun main(args: Array<String>) = runBlocking<Unit> {
    val job = launch {
        repeat(10) {
            println("hello")
            delay(500)
        }
    }

    delay(2000) // delays for launched coroutine to run for a while 
    println("cancelling")
    job.cancel()
}

//console output
hello
hello
hello
hello
cancelling