public void Run()
{
// assign derived instance to base reference
Telephone phone1 = new DigitalPhone();
Telephone phone2 = new TalkingPhone();
Telephone phone3 = new DigitalCellPhone();
phone1.Ring(); // accessing the polymorphic method
phone2.Ring(); // accessing the polymorphic method
phone3.Ring(); // accessing the polymorphic method
DigitalPhone phone4 = new DigitalPhone();
DigitalPhone phone5 = new DigitalCellPhone();
phone4.VoiceMail();
phone5.VoiceMail();
}
public void Run()
{
// assign derived instance to base reference
Telephone phone1 = new DigitalPhone();
Telephone phone2 = new TalkingPhone();
Telephone phone3 = new DigitalCellPhone();
phone1.Ring(); // accessing the polymorphic method
phone2.Ring(); // accessing the polymorphic method
phone3.Ring(); // accessing the polymorphic method
DigitalPhone phone4 = new DigitalPhone();
DigitalPhone phone5 = new DigitalCellPhone();
phone4.VoiceMail();
phone5.VoiceMail();
}