using System;

​

interface ICustomer{

     void print1method();

}

​

interface Icustomer2  : ICustomer{

    void print2method();

}

​

//multiple interface inheritance

class Customer : Icustomer2{

    public void print1method(){

        Console.WriteLine("print 1");

    }

    public void print2method(){

        Console.WriteLine("print 2");

    }

}

​

​

public class Program 

{

    public static void Main()

    {

        /*Console.WriteLine("Hello World");

        Customer c1 = new Customer();

        c1.print1method();

        c1.print2method();*/

        ICustomer cust1 = new Customer();

        cust1.print1method();

        Icustomer2 cust = new Customer();

        cust.print1method();

        cust.print2method();

    }

}