static void Main(string[] args)
{
MobilePhoneA mobilePhoneA = new MobilePhoneA();
mobilePhoneA.PowerOn();
mobilePhoneA.DialUp();
mobilePhoneA.about();
mobilePhoneA.PowerOff();
MobilePhoneB mobilePhoneB = new MobilePhoneB();
mobilePhoneB.PowerOn();
mobilePhoneB.DialUp();
mobilePhoneB.about();
mobilePhoneB.PowerOff();
AbstractClass abstractClass;
abstractClass = new ConcreteClassA();
abstractClass.TemplateMethod();
abstractClass = new ConcreteClassB();
abstractClass.TemplateMethod();
}