- using System;
- interface A
- {
- void Add(int x, int y);
- void substract(int x, int y);
- }
- class calc : A
- {
- public void Add(int x, int y)
- {
- Console.WriteLine("sum is {0}", (x + y));
- }
- public void substract(int x, int y)
- {
- Console.WriteLine("diff is {0}", (x - y));
- }
- }
- class Demo
- {
- static void Main()
- {
- calc obj = new calc();
- obj.Add(12, 11);
- obj.substract(12, 13);
- Console.ReadKey();
- }
- }
Interfaces in C#
This blog describe Interfaces in C#.