Playing with Inheritance...

public interface IBase

{

void baseDisplay();

}

public interface I1 : IBase

{

void display();

}

public interface I2 : IBase

{

void display();

}

public class BaseB

{

public BaseB()

{

this.display();

}

public virtual void display()

{

Console.WriteLine("Base");

}

}

public class DervB : BaseB, I1, I2

{

public DervB()

{

base.display();

this.display();

display();

display(5);

}

public override void display()

{

base.display();

Console.WriteLine("Derived");

}

void I1.display()

{

Console.WriteLine("Interface I1");

}

void I2.display()

{

Console.WriteLine("Interface I2");

}

public void display(int i)

{

Console.WriteLine("Seperate Method");

}

void IBase.baseDisplay()

{

Console.WriteLine("Base interface");

}

}

-------------------------------------------------------------------------------------------------

static void Main(string[] args)

{

BaseB b = new BaseB();

b.display();

Console.WriteLine("1111------------------------------------");

BaseB b2 = new DervB();

b2.display();

Console.WriteLine("2222------------------------------------");

DervB der = new DervB();

der.display();

der.display(2);

Console.WriteLine("33------------------------------------");

I1 i = new DervB();

i.display();

Console.WriteLine("------------------------------------");

I2 i2 = new DervB();

i2.display();

Console.WriteLine("------------------------------------");

I1 i3 = new DervB();

i3.baseDisplay();

Console.WriteLine("------------------------------------");

Console.ReadLine();

}