using System;

public class class1

{

   public class1 ()

   {

   Console.WriteLine(" constructor is called");

   }

    public void method1()

    {

        Console.WriteLine(" method1 is called");

    }

    public void method2()

    {

        Console.WriteLine("method2 is called");

    }

​

​

}

public class class2:class1

{

    public class2()

    {

     Console.WriteLine(" constructor1 is called");

    }

    public void method3()

    {

        Console.WriteLine("method3 is called");

    }

​

}

public class second

{

​

  static void Main()

{

     class2 c= new class2();

    c.method1();

    c.method2();

    c.method3();

    Console.ReadLine();

}

}