void RunConverter()
{
Console.WriteLine("Currency Converter");
Console.WriteLine("How much money do you want to convert?:");
//wirft ArgumentNullException bei null
//double euro = Double.Parse(Console.ReadLine());
//Console.WriteLine(euro);
//liefert 0 bei null
//euro = Convert.ToDouble(null);
//Console.WriteLine(euro);
if (!Double.TryParse(Console.ReadLine(), out double value))
{
Console.WriteLine("Please enter valid numbers only");
}
else
{
Console.WriteLine("Please enter a currency to convert from:");
String currency = Console.ReadLine().ToUpper();
if (currencyConverter.IsKnownCurrency(currency))
{
double result = currencyConverter.ConvertToEuro(currency, value);
//Version 1
//Console.WriteLine(currency + ": " + value.ToString("0.00") + " corresponds to EUR: " + result.ToString("0.00"));
//Version 2
//StringBuilder builder = new StringBuilder();
//builder.Append(currency).Append(": ").Append(value.ToString("0.00")).Append(" corresponds to EUR: ").Append(result.ToString("0.00"));
//Console.WriteLine(builder.ToString());
//Version 3
//Console.OutputEncoding = Encoding.UTF8;
Console.WriteLine($"{currency}: {value:0.00} corresponds to EUR: {result:0.00}");
Console.Beep();
Console.ReadLine();
Console.WriteLine("How much money do you want to convert?:");
if (!Double.TryParse(Console.ReadLine(), out value))
{
Console.WriteLine("Please enter valid numbers only");
}
else
{
Console.WriteLine("Please enter a currency to convert from:");
String from = Console.ReadLine().ToUpper();
Console.WriteLine("Please enter a currency to convert to:");
String to = Console.ReadLine().ToUpper();
if (currencyConverter.IsKnownCurrency(from) &&
currencyConverter.IsKnownCurrency(to))
{
result = currencyConverter.ConvertFromTo(from, to, value);
//variante 1
Console.WriteLine($"{from} : {value:0.00} corresponds to {to} : {result:0.00}");
}
else
{
Console.WriteLine("The supplied currency codes are not available");
}
}
}
else
{
Console.WriteLine("The supplied currency code is not available");
}
}
}