static void Main(string[] args)
{
Person p1 = new Person();
Student s1 = new Student();
Teacher t1 = new Teacher();
p1.Greet();
s1.SetAge(21);
s1.Greet();
s1.ShowAge();
t1.SetAge(30);
t1.Greet();
t1.Explain();
Console.ReadKey();
}
static void Main(string[] args)
{
Person p = new Person();
p.Greet();
Student s = new Student();
s.SetAge(21);
s.Greet();
s.ShowAge();
Teacher t = new Teacher();
t.SetAge(30);
t.Greet();
t.Explain();
}
static void Main(string[] args)
{
Person p = new Person("Lloyd");
p.Greet();
Student s = new Student("Alpha");
s.SetAge(20);
s.Greet();
s.ShowAge();
Teacher t = new Teacher("Beta");
t.SetAge(30);
t.Greet();
t.Explain();
Console.ReadKey();
}
