Code, C# - rextester

Code

//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace Rextester
{
public interface ia
{

void display();
}

public interface ib
{

void display();
}
public class a:ia,ib

{ 
string x;
public a()
{
x="nikhil";
}

public virtual void display ()
{
Console.WriteLine(this.x);
}
}

public class b: a
{
public override void display ()
{
Console.WriteLine("derived");
}
}

public class c: b
{
public void display ()
{
Console.WriteLine("derived2");
}
}

public abstract class o
{
 public abstract void display ();
public void show()
{

Console.WriteLine("abstract2");
}
}

public class j:o
{

public void display ()
{
Console.WriteLine("abstract derived");
}
}
    public class Program
    {
        public static void Main(string[] args)
        {
            //Your code goes here
            Console.WriteLine("nikhil!");
ib obja = new c();
obja.display();

}
    }
}


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