C# tutorial OOP-destructor

Destructor

class Student

    {

        private string stnumber;

        private string stname;

        private string stsex;

        public Student(){ //Constructor

          stnumber="";

          stname="";

          stsex="";

}

//Constructor with parameters

  public Student(string id, string name, string sex){

          stnumber=id;

          stname=name;

          stsex=sex;

}

        public void setnumber()

        {

            Console.WriteLine("Enter student's number:");

            stnumber =Console.ReadLine();

        }

        public void getnumber()

        {

            Console.WriteLine("Student's number is:{0}",stnumber);

        }

        public string stunumber{ //stunumber property

            set { stnumber=value;}

            get { return stnumber; }

    }

         ~Student()//destructor

           {

           }

 }