static ConverterBase GetConverter(string msg)
{
ConverterBase converter = null;
do
{
Console.Write(msg + " => ");
var unit = Console.ReadLine();
converter = ConverterFactory.GetInstance(unit);
} while (converter == null);
return(converter);
}
static double GetDistance(ConverterBase from)
{
double?value = null;
do
{
Console.Write($"변환하려는 거리(단위:{from.UnitName})를 입력하세요 => ");
var line = Console.ReadLine();
double temp;
value = double.TryParse(line, out temp) ? (double?)temp : null;
} while (value == null);
return(value.Value);
}
public DistanceConverter(ConverterBase from, ConverterBase to)
{
From = from;
To = to;
}