static void Main(string[] args)
{
Octogon octo = new Octogon();
octo.Draw();
((IDrawToForm)octo).Draw();
((IDrawToMemory)octo).Draw();
// ((IDrawToPrinter)octo).Draw();
IDrawToPrinter itfPrinter = octo as IDrawToPrinter;
if (octo != null)
{
((IDrawToPrinter)octo).Draw();
}
Console.ReadLine();
}
static void Main(string[] args)
{
Octogon oct = new Octogon();
//We not must use cast to access the draw()
IDrawToForm itfForm = (IDrawToForm)oct;
itfForm.draw();
//shorthand notation if you dont need the inerface
//variable for later use
((IDrawToPrinter)oct).draw();
//Could as use the is keyword
if (oct is IDrawToMemory)
{
((IDrawToMemory)oct).draw();
}
Console.ReadLine();
}
static void Main(string[] args)
{
Console.WriteLine("***** Fun with Interface Name Clashes *****");
// All of these invocations call the same Draw() method!
Octogon oct = new Octogon();
IDrawToForm itfForm = (IDrawToForm)oct;
itfForm.Draw();
// shorthand notation if variable not needed afterward
((IDrawToPrinter)oct).Draw();
// can also use the "is" keyword
if (oct is IDrawToMemory dtm)
{
dtm.Draw();
}
Console.ReadLine();
}