private static double BankFactory(int amount, int bankType)
{
IBank[] randomBank = new IBank[2];
randomBank[0] = new BankOne();
randomBank[1] = new BankTwo();
Random random = new Random();
var pick = random.Next(3);
IBank bank = null;
switch (bankType)
{
case 1:
bank = new BankOne();
break;
case 2:
bank = new BankTwo();
break;
default:
bank = randomBank[pick - 1];
break;
}
return(bank.GetCharge(amount));
}