public static double ExchangeCurrencies(List <Exchanger> exchangers, string[] request, double ammount)
{
if (exchangers.Exists(x => x.Currency == request[0]) && exchangers.Exists(x => x.Currency == request[1]))
{
Exchanger to = exchangers.Find(x => x.Currency == request[0]);
Exchanger from = exchangers.Find(x => x.Currency == request[1]);
return(from.Exchange(to.ChangingCourseDKK, ammount));
}
else
{
return(-1);
}
}
static void Main(string[] args)
{
if (args.Length != 2)
{
Console.WriteLine("Usage: Exchange <currency pair> <ammount to exchange>");
Console.ReadKey();
System.Environment.Exit(1);
}
else if (!(RegexLib.IsCurrencyValid(args[0]) && RegexLib.IsNumberValid(args[1])))
{
Console.WriteLine("<currency pair> for example: EUR/DKK, <ammount to exchange> : number, you used: {0} {1}", args[0], args[1]);
Console.ReadKey();
System.Environment.Exit(1);
}
//Given data
string[] lines = { "EUR 743.94", "USD 663.11", "GBP 852.85", "SEK 76.1", "NOK 78.4", "CHF 683.58", "JPY 5.9740" };
List <Exchanger> exchangers = new List <Exchanger>();
foreach (string line in lines)
{
string[] currency = line.Split(' ');
Exchanger exchanger = new Exchanger(currency[0], Convert.ToDouble(currency[1]));
exchangers.Add(exchanger);
}
exchangers.Add(new Exchanger("DKK", 100));
//request[0]- FROM, request[1]- TO
string[] request = args[0].Split('/');
var result = ExchangeCurrencies(exchangers, request, Convert.ToDouble(args[1]));
if (result != -1)
{
Console.Write("Succes: {0}", result);
Console.ReadKey();
}
else
{
Console.WriteLine("Error: currency pair should containt one of the following currencies - EUR, USD, GBP, SEK, NOK, CHF, JPY, DKK, you used: {0}", args[1]);
Console.ReadKey();
}
}