private void Form1_Load(object sender, EventArgs e)
        {
            Firma   DeepBlue = new Firma();
            Calisan c1       = new Calisan();

            c1.İsim         = "Veli Gümüş";
            c1.calisilanGun = 21;

            Muhasebeci m1 = new Muhasebeci();

            m1.İsim          = "Ahmet Demir";
            m1.calisilanGun  = 21;
            m1.calisilanGun  = 21;
            m1.toplamCalisma = 24;

            Satisci s1 = new Satisci();

            s1.İsim         = "Mehmet Celik";
            s1.satısMiktari = 1000;

            MessageBox.Show(s1.İsim + s1.MaasHesapla().ToString());
            MessageBox.Show(m1.İsim + m1.MaasHesapla().ToString());
            MessageBox.Show(c1.İsim + c1.MaasHesapla().ToString());

            DeepBlue.calisanEkle(m1);
            DeepBlue.calisanEkle(s1);
            DeepBlue.calisanEkle(c1);

            MessageBox.Show("Maaslar Toplamı : " + DeepBlue.ToplamMaas().ToString());
        }
 public void calisanCikar(Calisan c)
 {
     calisanlar.Remove(c);
 }
 public void calisanEkle(Calisan c)
 {
     calisanlar.Add(c);
 }