static void Main(string[] args)
{
Student st1 = new Student("Иванов", 50);
Student st2 = new Student("Петров", 50);
Student st3 = new Student("Козлов", 50);
Bank bank = new Bank("Беларусбанк", 10, st1.OnChangeInBank);
Console.WriteLine(st1);
Console.WriteLine(st2);
Console.WriteLine(st3);
Console.WriteLine();
bank.observer+= st3.OnChangeInBank;
Console.WriteLine(st3);
Console.WriteLine();
bank.DollarRate = 3;
//bank.observer(new Bank("Левый", (decimal)0.5));
Console.WriteLine(st1);
Console.WriteLine(st2);
Console.WriteLine(st3);
Console.WriteLine( );
Func f1 = Math.Sin; f1 += Math.Cos;
Func f2 = Math.Cos; f2 += Math.Atan;
Func f = f1;
f += Math.Asin;
f += Math.Sin;
f += Math.Cos;
f += f2;
f(4);
foreach (Delegate d in f.GetInvocationList()) Console.WriteLine(d.Method);
Console.WriteLine();
f -= f1;
foreach (Delegate d in f.GetInvocationList()) Console.WriteLine(d.Method);
Console.WriteLine();
Func ff = f1 - f;
foreach (Delegate d in ff.GetInvocationList()) Console.WriteLine(d.Method);
Console.ReadKey();
}
static void Main(string[] args)
{
var atm = new ATMSubject();
var display = new Display();
var bank = new Bank();
atm.RegisterObserver(bank);
atm.RegisterObserver(display);
atm.BankTransfer("aaa","bbb",50);
Console.ReadLine();
}