static void Main(string[] args)
{
// The Principal class will ouput
// 'Monitor' since the variable
// 'g' is the simply declared as a
// new Princpal() class.
Principal g = new Principal();
g.Monitor();
// d will return 'Monitor' as it
// is a child class of the Principal
// so it will inherit the base
// function. At the same time, it
// can call its own function when
// used in d.Teach().
Teacher d = new Teacher();
d.Monitor();
d.Teach();
// The student class is another
// child class of Principal. It
// contains its own unique function
// printing out 'Learn' while
// retaining Principal's 'Monitor'
// and thus will be able to call it
// when used in dot notation.
Student s = new Student();
s.Monitor();
s.Learn();
Console.ReadKey();
}
static void Main(string[] args)
{
Principal g = new Principal();
g.Monitor();
Teacher d = new Teacher();
d.Monitor();
d.Teach();
Student s = new Student();
s.Monitor();
s.Learn();
Console.ReadKey();
}