CoroutinesConcurrencyDemo.kt

fun jagaKonter() = viewModelScope.launch {
        val listrik = async { beliListrik() }
        val pulsa = async { beliPulsa() }
        Log.d("example", "Semua Transaksi Selesai, Total Pendapatan : Rp. ${listrik.await()+pulsa.await()}")

    }

    suspend fun beliListrik(): Int{
        Log.d("example", "Melayani Pelanggan Pertama")
        delay(7000L)
        val  price = 52000
        Log.d("example", "Transaksi Pertama Selesai")
        return price
    }

    suspend fun beliPulsa(): Int{
        Log.d("example", "Melayani Pelanggan Kedua")
        delay(5000L)
        val  price = 21000
        Log.d("example", "Transaksi Kedua Selesai")
        return price
    }

}