static void Main(string[] args)
{
Abstraction ab = new RefinedAbstraction();
ab.Implementor = new ConcreteImplementorA();
ab.Operation();
ab.Implementor = new ConcreteImplementorB();
ab.Operation();
}
static void Main()
{
Abstraction ab = new RefinedAbstraction();
// Set implementation and call
ab.Implementor = new ConcreteImplementorA();
ab.Operation();
// Change implemention and call
ab.Implementor = new ConcreteImplementorB();
ab.Operation();
// Wait for user
Console.Read();
}