Classes Student + Teacher

Proposed exercise

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• 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.

Output

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Solution

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using System;
class Person
{
    protected int age;

    public void Greet()
    {
        Console.WriteLine("Hello");
    }

    public void SetAge(int n)
    {
        age = n;
    }
}

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

class Teacher : Person
{
    private string subject;

    public void Explain()
    {
        Console.WriteLine("Explanation begins");
    }
}

class StudentAndTeacherTest
{
    static void Main()
    {
        bool debug = false;

        Person myPerson = new Person();
        myPerson.Greet();

        Student myStudent = new Student();
        myStudent.SetAge(21);
        myStudent.Greet();
        myStudent.ShowAge();

        Teacher myTeacher = new Teacher();
        myTeacher.SetAge(30);
        myTeacher.Greet();
        myTeacher.Explain();

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