public ClassEqu(double V1, double V2, string Oper)
{
ClassFactory doubleRes = new ClassFactory();
abstractClass ac = doubleRes.CreateFactory(Oper);
dResult = ac.Result(V1, V2);
}
public abstractClass CreateFactory(string Oper)
{
abstractClass _oFactory = null;
switch (Oper)
{
case "+":
_oFactory = new ClassPlus();
break;
case "-":
_oFactory = new ClassMinus();
break;
case "*":
_oFactory = new ClassMultiply();
break;
case "/":
_oFactory = new ClassDivid();
break;
}
return(_oFactory);
}