using System;

​

/*Single Responsibility

Open for extension and Close for modification

Liskov Subsitution 

Interface Segreation

Dependecy inversion

*/

public class Program

{

    public static void Main()

    {

        var x  = new bird("Per");

        var x2  = new bird();

        Console.WriteLine(x.Name);

        Console.WriteLine(x2.Name);

    }

​

};

​

 public class bird  

    {  

        string name = string.Empty;  

        public string Name  

        {  

            get;  

            set;  

        }

        // REMOVE Default Constructor 

        public bird()  

            {  

                name = "Nishant";  

            } 

        // REMOVE Default Constructor   

        public bird(string name) //Parameterized Constructor  

            {  

                this.Name = name;  

            }  

    }