C# Copy Constructor

Related Topics

Constructors

Constructor Chaining 

Private Constructor

COPY CONSTRUCTOR

A copy constructor is an instance constructor which takes object of the class as parameter. A copy constructor is therefore, a parameterized instance constructor which parameter is the object of the class of the constructor (or, we can say that its parameter type is its class).

using System;

namespace ConsoleCopyConstructor

{

    class Student

    {

        public int Id { get; set; }

        public string Name { get; set; }

        //parameterized constructor

        public Student(int id, string name)

        {

            this.Id = id;

            this.Name = name;

        }

        //copy constructor

        public Student(Student s)

        {

            this.Id = s.Id;

            this.Name = s.Name;

        }

        public void StudentDetails()

        {

            Console.WriteLine("Id:{0}, Name:{1}", Id, Name);

        }

    }

    class Program

    {

        static void Main(string[] args)

        {

            Student s1 = new Student(1, "Ajeet");

            Student s2 = new Student(s1);

            Console.WriteLine("s2 is copy of s1");

            s1.StudentDetails();

            s2.StudentDetails();

            Console.WriteLine("\nChange the s2 data:");

            s2.Id = 2;

            s2.Name = "Ravi";

            s1.StudentDetails();

            s2.StudentDetails();

            Console.ReadKey();

        }

    }

}