static void Main()
{
var objectStructure = new ObjectStructure();
var first = new ElementA("Adam, Element A");
var second = new ElementB("Benny, Element B");
objectStructure.Add(first);
objectStructure.Add(second);
var firstVisitor = new ConcreteVisitorA();
var secondVisitor = new ConcreteVisitorB();
objectStructure.Accept(firstVisitor);
Console.WriteLine();
objectStructure.Accept(secondVisitor);
}
public void VisitElementA(ElementA elementA)
{
Console.WriteLine($"ConcreteVisitorB visited {elementA.Name}");
}