Classes Student + Teacher Learn programming C#

Lesson:

OOP Object Oriented Programming

Exercise:

Classes Student + Teacher

Objetive:

Create a new project, and include in it the class Person that you just created.

Create a class "Student" and another class "Teacher", both descendants of "Person".

The class "Student" will have a public method "GoToClasses", which will write on screen "I’m going to class."

The class "Teacher" will have a public method "Explain", which will show on screen "Explanation begins". Also, it will have a private attribute "subject", a string.

The class Person must have a method "SetAge (int n)" which will indicate the value of their age (eg, 20 years old).

The student will have a public method "ShowAge" which will write on the screen "My age is: 20 years old" (or the corresponding number).

You must create another test class called "StudentAndTeacherTest" that will contain "Main" and:
Create a Person and make it say hello
Create a student, set his age to 21, tell him to Greet and display his age
Create a teacher, 30 years old, ask him to say hello and then explain.

Code:

using System;
namespace December_19th
{
    class Teacher : Person
    {
        private string subject;
        public void Explain()
        {
            Console.WriteLine("Explanation begins");
        }
    }
}

using System;
namespace December_19th
{
    class StudentAndTeacherTest
    {
        static void Main()
        {
            bool debug = false;

//Create a Person and make it say hello
            Person myPerson = new Person();
            myPerson.Greet();

/*Create a student, set his age to 21, 
              tell him to Greet and display his age*/
            Student myStudent = new Student();
            myStudent.SetAge(21);
            myStudent.Greet();
            myStudent.ShowAge();

/*Create a teacher, 30 years old, 
             *ask him to say hello and then explain*/
            Teacher myTeacher = new Teacher();
            myTeacher.SetAge(30);
            myTeacher.Greet();
            myTeacher.Explain();

if (debug)
                Console.ReadLine();
        }
    }
}

using System;
namespace December_19th
{
    class Student : Person
    {
        public void ShowAge()
        {
            Console.WriteLine("My age is: {0} years old", age);
        }
    }
}

using System;
namespace December_19th
{
    class Person
    {
        protected int age;
        public void Greet()
        {
            Console.WriteLine("Hello");
        }
        public void SetAge(int n)
        {
            age = n;
        }
    }
}

using System;
namespace December_19th
{
    class Teacher : Person
    {
        private string subject;
        public void Explain()
        {
            Console.WriteLine("Explanation begins");
        }
    }
}

using System;
namespace December_19th
{
    class StudentAndTeacherTest
    {
        static void Main()
        {
            bool debug = false;

            //Create a Person and make it say hello
            Person myPerson = new Person();
            myPerson.Greet();

            /*Create a student, set his age to 21, 
              tell him to Greet and display his age*/
            Student myStudent = new Student();
            myStudent.SetAge(21);
            myStudent.Greet();
            myStudent.ShowAge();

            /*Create a teacher, 30 years old, 
             *ask him to say hello and then explain*/
            Teacher myTeacher = new Teacher();
            myTeacher.SetAge(30);
            myTeacher.Greet();
            myTeacher.Explain();

            if (debug)
                Console.ReadLine();
        }
    }
}

using System;
namespace December_19th
{
    class Student : Person
    {
        public void ShowAge()
        {
            Console.WriteLine("My age is: {0} years old", age);
        }
    }
}

using System;
namespace December_19th
{
    class Person
    {
        protected int age;
        public void Greet()
        {
            Console.WriteLine("Hello");
        }
        public void SetAge(int n)
        {
            age = n;
        }
    }
}