using System;

​

public class Program

{

    public static void Main()

    {

        Student student = new Student();

        student.FirstName = "Jhon";

        student.LastName = "Doe";

        student.FullName = "Jhon Doe";

        student.PrintStudentDetail("Jhon", "Doe");

    }

}

​

public class Student

{

    string _firstName = string.Empty; // Class field also called -> state or data of class

    string _lastName = string.Empty; // Class field also called -> state or data of class

    private string _fullName = string.Empty; // Class field also called -> state or data

    int _age = 0;

    public string FirstName

    {

        get;

        set;

    } // Auto implemented FirstName property

​

    public string LastName

    {

        get;

        set;

    } // Auto implemented LastName property

​

    public string FullName //Property of a class, internally this is same as auto implemented property

    {

        get

        {

            return _fullName;

        }

​

        set

        {

            _fullName = value;

        }

    }

​

    public Student() //Constructor of Student class, Constructor name must be same as class name.

    {

    }

​

    public Student(string firstName, string lastName) //Parameterized Constructor of Student class, Constructor name must be same as class name.

    {

        _firstName = firstName;

        _lastName = lastName;

    }

​

    public void PrintStudentDetail(string firstName, string lastName) //Method or function, also called behavior of a class

    {

        Console.WriteLine("Student first name is : {0} and student last name is : {1}", firstName, lastName);

    }

​

    ~Student() //Destructor of a class automatically called by garbage collector. Destructor name must be same as class name. 

    {

    }

}