static void Main(string[] args)
{
Client client = new Client();
client.SetOnStart(new Programmer());
TesterTeam testerTeam = new TesterTeam();
client.SetOnFinish(new Tester(testerTeam, "application", "databases"));
client.DoSomethingImportant();
Console.ReadLine();
}
public Tester(TesterTeam receiver, string a, string b)
{
this._testerTeam = receiver;
this._a = a;
this._b = b;
}