public interface Iislemler
public class IslemNo : Iislemler
private string islemkodu;
public IslemNo(string c, string d, double a)
public double tutargetir()
public void islemgoster()
Console.WriteLine("İşlem No: {0}", islemkodu);
Console.WriteLine("Tarih: {0}", Tarih);
Console.WriteLine("Tutar: {0}", tutargetir());
public static void Main()
IslemNo islem1 = new IslemNo("001", "8/10/2012", 78900.00);
IslemNo islem2 = new IslemNo();
IslemNo islem3 = new IslemNo("002", "9/10/2012", 451900.00);