Answer to Question #318113 in C# for Jessayy

Question

Create a person class and instantiate an object student based on this Class. The class can set an age, say hello, display her age on the screen and start the explanation.

Example of the output

My age is 21 years old

I'm studying

Hello!

I'm explaining

Answer 1

using System;
using System.Collections.Generic;




namespace App
{




    class Person
    {
        
        protected int age;








        public Person()
        {
            
        }








        public virtual void Greet() // Method for greeting
        {
            Console.WriteLine("Hello!\nI'm explaining");
        }
















        public void SetAge(int n) // Method for setting age
        {
            this.age = n;
        }
    }




    class Student : Person
    {
        public Student()
        {








        }








        public void DisplayAge()
        {
            Console.WriteLine("My age is " + age + " years old.");
        }








        public void Studying()
        {
            Console.WriteLine("I'm studying.");
        }








    }






    class Program
    {




        static void Main(string[] args)
        {




            Student student = new Student();
            student.SetAge(21);
            student.DisplayAge();
            student.Studying();
            student.Greet();








        












            Console.ReadLine();
        }
    }
}